We booked a weeks holiday at the 4* and found on our arrival that we had been upgraded to the five star next door. As we only had 1 week I cannot comment on a lot of the facilities. Our room was on the 5th floor overlooking the garden, lovely in the hot summer but in the winter no sun on our large balcony. No complaints except we had an over bath shower which was difficult for my 6'4" husband to use. If we had had a longer stay I would have tried to get a better shower. The hotel is lovely once you have found out how to negotiate the lifts to use the restaurants next door.
We LOVED the Table 1, and the Buffet restaurant. Food was of an excellent quality, staff are lovely. Both hotels were kept very clean inside and out. Location superb as quoted in previous postings. We found a few evenings with some entertainment, loved that some locals came in to have a dance in the 4* cocktail bar. Not sure if this is only in the low season but they are really nice people. Although we are retired ourselves, the hotel did have a lot of elderly people staying, again this could be because of the season? Very quiet at night. Breakfast was the same every day, a big choice of full English (the fried bread was to die for) continental and the usual cereals, breads etc. All well cooked and presented. If you want a quiet hotel in a good location I would not hesitate to recommend this hotel. We were so lucky paying for the 4* de-luxe room and then going into the 5*, although not seeing any rooms in the 4* it is difficult for me to compare. We booked with Mercury Direct on the dine around package and have been very satisfied with everything from the transfers from the airport to the outings we booked.
One point: the cocktails and drinks are cheaper in the 4*

We stayed here for a week on a family holiday and found it to be a pretty good hotel. It's in a good location in Sliema and is close to the bus routes and ferry to Valetta.
The rooms have air con but this wasn't working in any room whilst we were there but assume that's because it was winter season. Our room had a nice bathroom with lots of hot water, a mini bar, iron, room safe and plenty of hanging space. Bed was huge and comfy.
You have a choice of harbour view or garden view rooms - harbour view rooms do have a nice view but are on the side next to a major road which does get noisy whilst the garden view rooms overlook the inner courtyard but are quieter.
Breakfast is served in the Taste restaurant and is a good mix of hot and cold food buffet style but with a chef to do eggs etc. Staff are all very nice and friendly - they couldn't do enough for us.
There appears to be some form on entertainment in the bar every evening which seems to consist of somebody playing the guitar or keyboard. Easy listening music I'd say for style.
If we stayed again I'd get a garden view room as the road noise from the 2nd floor was noticeable.