I spent 5 nights here over a busy weekend (London Marathon). At first I was not happy, but on request they changed my room and I came to like the place. The good things include The Natural Kitchen cafe which adjoins the hotel, the neatly designed rooms, the location, and the rooftop bar which has really good views.
Initially I was put in a room overlooking Pepys St at the front. The room was large but soul less, had no view and some street noise. On request they moved me and I had an interior room looking into the central atrium. This suited me fine. It was a bit like Rear Window, you could often see into the rooms and corridors opposite.
The room was quiet, had an opening window, was compact but well designed and fine for 1 person, although it might get a little cramped for 2.
The location is right by the Tower Hill tube station, and an easy walk to Tower Bridge, the Tower of London, and accessible to that part of The City.
The service was friendly and helpful and responsive.