It was really great, but our least favorite hotel of the 3 we stayed in (but the others were fabulous so hard to compete - Peninsula BKK and Anantara Golden Triangle). The service was great but not quite up to par of the other two; I think that maybe just Siem Reap in general. Nice breakfast buffet but hot items needed to be ordered off the menu (though incl.). Just takes a bit more time then getting everything off the buffet so need to plan time accordingly in the morning.

The rooms were very nice but we did find the beds very hard (even I noticed it as soon as I layed down, and I usually don't notice those types of things, though my hubby does). Some of the nicest hallways I've seen. A computer on every floor which we often found available. We were travelling with our kids (ages 12 and 15). We had two rooms that were next to each other with a small foyer and another door so we were able to keep our room doors open to each other, but there was another door to close off to the hallway.

It is in an excellent location right in the heart of town just a few blocks walk to Pub St. and Old Market. For the record, despite the traffic noise in the town, we never noticed it anywhere in the hotel.

We did encounter some mosquitoes in the room.

The architecture is very cool and hip, done quite nicely although I didn't really get the large art gallery in the middle of the lobby. The pool is nice with some of the most relaxing pool chairs as they are nicely padded and quite wide. They also have some bed type things but they are covered and kind of dark. My one complaint was just that this was definitely more of a city hotel when it came to the pool area, not a lot of room and no view to look out on. Not a fault of the hotel, I just think I would have rather stayed in a place with a bit more space when it came to relaxation/down time. The rest of the fam disagreed and said they would still pick HDLP.

Hotel is boutique hotel. Stayed in this hotel on our honeymoon. It was only fab ! stayed in Poolside suite. Large room,big bed, with bath in the middle of the floor which was different and was used. Could watch TV from the bath which gave us a laugh if nothing else. Hotel situated in the middle of the town. Off the beaten track as regards where other big brand American hotels are ( mostly on one stretch of road). Leaving your hotel you come out into dusty, bustling street. For us we enjoyed it as got us into the heart of things as the locals live but having the comfort of the hotel close by.
Must try ... dinner in hotel restaurant. Had dinner of a bed hung by ropes to the ceiling ...very different dining experience. We ate the Vietnamese tasting menu 8 courses I think, food was delicious !
Watched local dancing by kids from an orphanage which was really nice.
Only small downside is the sun partially gets into the outdoor area/sunbeds with the way the courtyard of the hotel is built. Staff very friendly. Has DVD facility, has The Killing Fields DVD if that would be of interest to you given the history of the place. Overall lovely place, would definitely staff again.

We spent 4 nights here in December, while visiting Angkor Wat. We wanted to be in the town centre to experience local life, but once there, we found the town so dusty , dirty, generally chaotic and full of grubby looking backpackers that we were not sure it was an advantage to be near the town centre at all!
The hotel was beautifully designed but rather precious in attitude - a bit like an Aman hotel or a W hotel right next to third world poverty. I found it all rather incongruous yet I could not wait to return to its calm and restful atmosphere and its welcome hot water to get rid of that horrid red dust that penetrates every orifice of the body!

In short, advantages-

Large, well appointed, thoughtfully designed rooms with Aveda toiletries - we had a massive suite.
Excellent food, also in the cafe, although selection was limited at breakfast
Good central position from which you could watch the chaos of the town and visit markets and local restaurants easily,
Lots of helpful and well meaning staff - though sometimes understanding of English was limited
Attractive, well maintained pool area - though far too small for my liking
Good spa with excellent, well-priced treatments

Disadvantages:
-
They kept telling us that the place was designed by Bill Brenchley, or someone, a total irrelevance to us but obviously a major source of pride to the hotel. It was terribly design conscious.
A small site, so things couild seem rather cramped
Unappealing reception areas - minimalist gallery type design looked 'cool' but not at all comfortable or conducive to guests hanging around there - it was, not surprisingly, always deserted!
Mosquitoes - and loads of them - despite the hotel's efforts to get rid of them. Siem Reap is full of them.
There was no authentic Cambodian feel to the place -indeed it felt American; it was over-designed, though attractive nevertheless, and rather incongruous in its setting. It tended to emphasise luxury though it was slap bang next to extreme poverty.
The place was just too self conscious, design conscious and precious to be appropriate in this setting. It also had a rather irritating 'holier than thou' approach. I choose the charities I support without help from outside influences!
It was also very expensive, generally

Despite my reservations, I cannot deny that it is a phenomenal achievement to develop a hotel approaching international 5 star standard in such an unattractive, dirty and dusty area.

Spotless, faultless stay at Hotel de La Paix.

I stay 150 nights a year in different hotels worldwide, and this was one of the few occasions where I have nothing negative to say about a hotel.

Great concepts about sustainable tourism as well (example: No plastic non-recycled shampoo bottles - small copper flasks are refilled daily - it looks good and protects the environment at the same time!).
At Hotel De La Paix you are pampered, while your conscience is clear!

Great tour guides and drivers associated with the hotel.
Meric restaurant is awesome!
Breakfast is top notch!

Hotel de La Paix is HIGHLY RECOMMENDED!