The hotel is located in the Gasometer City in Simmering.
Very nice - clean, modern design, simple and "minimal" but has almost everything you need.
It's a "budget" hotel, so it's not very expensive and you really get all you need.
There is a U-Bahn station next to it (takes you 5 minutes to get there) and only 7 subway stations to get to the centre of the city (Stephansplatz). It takes you all together about 10-15 minutes. So really good option to get into town and not paying 120€ per night for B&B.
The rooms are quite large, with single beds but possibility to move them together easily. The internet is quite expensive (in the room) and wireless from lobby is not strong enough to reach the rooms. You can get free access code for the wireless to be used in the lobby.
The showers are a bit funny - there is no shower curtain but it's ok.
The only thing missing in the room is a closet (to hang your clothes). There are just 2 shelves available and a hanger in the hallway. Not a whole lot of space for your luggage and clothes.
I stayed in the hotel for 2 weeks business education, and we had a special package with breakfast, lunch and dinner included.
The food is very good, but maybe too much meat every day:)
The staff is nice, but they seem very disorganised. Everyday there seemed to be something missing or "late", so you could really tell it has only been a few months since they opened the hotel.
Overall a very nice hotel!

This economy hotel is new and modern so I hoped to get at least basic services in good condition at a good price,since it was slightly outside Vienna proper, however, I came away disappointed. Generally the hotel lobby is modern and clean, however, when one walks into it one is greeted with offensive cigarette smells from the nearby bar.

The hotel conveniently is located at the Gasometer stop on the U3 subway about 10 minutes from the center of Vienna. Gasometer is a haven for people under 25 and the hotel for people under 30 (I am not).

First thing you'll notice about Roomz' rooms is that they are clean, spartan and somewhat small. This should not be surprizing if you have viewed it's internet photos. However, it's size will will suddenly seem much smaller when you find out that there is no place to put a suitcase except on the floor at the foot of the bed, in the pathway between it and the door where you will eventually trip over it. And you will have to leave it accessible and open as there are no drawers or closets in the room (yes, you read that right). There is a small hanging space which has about 8 hangers under a shelf . (Note: with 2 large suitcases I had to ask for a slightly larger room, but this was not a standard room).

The staff seemed very helpful and the breakfast was very pleasant and reasonably priced but since I booked through Hotels.com breakfast was not included.

Other problems as follows:
1) Room is stylish and clean but the the latch on my window was broken and 2 lamps were not working.

2) Good (if a little small) LCD TV with pay internet access but does not come with a keyboard.

3) A good sized safe is supplied but there is no refrigerator or ice available. (I have yet to use a safe in a room and would gladly trade it for a refrigerator).

4) Hotel has has a gym but does not supply anything to put your luggage on (have they heard of luggage racks?).

5) The bathroom is in good shape but the drinking glasses are square and are made of thick ceramic making drinking awkward and unpleasant (there are no other glasses in the room).

6) The beds are very hard and not that comfortable. I wound up sleeping on the comforter for some extra softness and using the extra blanket as a covering.

I can not recommend Roomz unless you plan to stay for only one night and if you arrive with no more than an overnight bag. I wanted to like this very stylized hotel but it needs to make some changes to get to a 3 star rating. It first needs to add some basics such a refrigerator, some drawers for storage, a suitcase stand, a foam top to all the beds, and proper drinking glasses.

Stayed here for two nights recently. Found the hotel to be of a very high standard, we drove there from Graz airport and it was very easy to find. Once there we found the staff to be very friendly and were very impressed with the overall decor.

We had a twin room which was very well laid out, the bathroom area had shower gel, shampoo etc with an excellent power shower, the beds were very comfortable and the room lovely and warm.

With regard to the local area, the tube station is a 2 minute walk away and takes 10mins to Stephanplatz in the centre of Vienna. The area is being re-developed but we found it to be fine for our purposes.

We shall be back next summer and will certainly be trying to stay here
again.

Booked this hotel as it seemed not ridiculously inconvenient (next to a subway station) and well priced compared to centrally located Vienna hotels. Stayed for two nights. Although it is close to the U-Bahn station, if you arrive at night you may have some trouble finding it - you might not want to stand in front of the U-Bahn station consulting the map, looking "touristy" after dark. As well as finding the hotel its difficult to locate the hotel entrance - there's little to suggest where it is in the building facade. Nearby is the shopping complex (Gasometer) which includes a supermarket and McDonald's, as well as other eating options which is handy. I'm not sure how successful the re-development has been as several tenants in the shopping complex have their names taped over on the centre guide (I assume they have closed down).

First impression of the hotel wasn't that great. They appear to cram the restaurant and bar area into the lobby, and as such arriving around 10pm I felt like I was checking in at a bar full of drinkers. Lobby staff member seemed friendly enough initially till I asked him if he spoke English, when his manner became a little downbeat. Gave me two room access cards for some reason.

Room is fairly basic, but the hotel is new, and it is clean. Despite the building being fairly low rise, the lifts get busy. Appears they have no service lift as service staff with trolleys etc also waiting to use lift at times. Room came without a "do not disturb" card, so was disturbed by cleaning staff on my first morning there. Also was pleased to see a safe in the room. Not pleased to see that it was not working. The only "extras" that were provided were a shoe shine kit (why I have no idea) and shower gel / hand wash in the bathroom.

As with one other reviewer's comments there is no shower curtain/door in the bathroom so water goes everywhere.There is also no bathroom door, but there is a mirror opposite the bathroom to reflect the image of you in your birthday suit to anyone else who might be in the room while you are in the bathroom, which means zero privacy. If you are with a friend and they wander / look the wrong way, or if housekeeping walks in on you because there is no "Do Not Disturb" sign in the room, there is a 90% chance they will see you naked.

I assume the hotel has facilities to offer on its premises. But as there is absolutely no printed information provided in the room, I can't tell you what these are. The TV system tries to be funky, with in room internet through a keyboard (available from reception? Not sure, no information provided), and tv channels accessible through a menu, but it just succeeds in being clunky and user un-friendly in my opinion. Housekeeping seemed to be finishing their work at around 5pm (they were trying to get into my room at 9am) but on entering my room they had done nothing other than empty my bin and fold up my duvet. Towels still in their original place. In the evening single internet access terminal in the lobby seemed to be inhabited by same internet junkie every time I went past it.

The area around the hotel has been redeveloped, and includes student accommodation. Some of this is located next to the hotel. On the second night the students decided to drink and play music at high decibel level until about 4 in the morning. After checking in (if you decide to stay in this hotel) and going to your room you look out the window and see faded signs saying "Beer" and "Cocktails" over some doorways opposite, you may want to consider requesting an alternative room.

I am usually pretty easy going and easily pleased, but my experience left me cold and feeling that the hotel is unremarkable. I won't be staying there again.