Great if you can get a deal
We were given Marriott points to stay here, so it was a real treat. The lobby is lovely, and the staff is very friendly and helpful. We didn't use the mini-bar or room service, but we did poke our heads in to the restaurant and bar. They both look wonderful and have views and comfortable seating. My impression is that the restaurant is popular for the Big Ben/Parliament View.
The room had tea, coffee, cookies, and hot chocolate available. And there is a turndown service every night. Also, there are robes and a complimentary umbrella for your use while you stay. The room we were in (King bed) was really big. It had two chairs, a vanity, a desk, and a large entertainment/bureau and there was still lots of room to walk around.
The location is within easy walking distance of the Waterloo station, and the 159 and 12 buses go right by the front entrance of the hotel. Also, it's right on the river walk, so you can walk to the Tate Modern and stop by cafes, restaurants, and book fairs on the way or on the return.
Despite all the wonderful aspects, I would never stay here for the price. Our room would have cost between $250 - 300 per night, and it wasn't worth that. There is another hotel in the County Hall for about $140 per night, and I'm sure the left over money can be better spent in London.
Unique Quality: The view is definitely wonderful. That is, it's wonderful if you get one of the outward facing rooms. We requested a Big Ben riverview room, and we got one. Except it was at the base of the London Eye. Now, this was very interesting because we could watch people on line while we sipped our morning coffee, however, to see Big Ben we had to stand at the very corner of the room. Also, a warning about the location of the rooms, a lot of them are VERY FAR AWAY from the lift. This is not much of a problem, but it might prove tiring to someone who has trouble walking or uses a cane.
There is a pool, a spa upstairs, and very nice lotions, shampoos, and so on.
Directions: Waterloo Station, or if you fancy a walk over the bridge, the Westminster Station. It's just over the Westminster Bridge on the South Bank side.