Location is great: very convenient if you're gonna work/have meetings at Canary Wharf. Mary is very friendly and replays really fast. Bedclothes are clean, there were also enough towels.
There were just 3 micro issues:
1. When I arrived it was quite cold in the room because of the gap between the window and the window frame. Mary fixed it next day.
2. In general, the speed of the Internet connection was about 50 Mbit/s but sometimes it was really slow (~100-300 kbit/s).
3. There was just one cleaning.