The standout for me, aside from the location, is the incredible plumbing. Silly as it sounds you can fill a deep bath with scalding hot water in about 90 seconds, as an engineer at heart i find it so impressive that a hotel this size can do this 24/7.
Staff are brilliant and so attentive.
Rooms arent anything special but the amenities are all there and they are clean, and again with everything within a 20 min walk, from theaters to restaurants to the major train stations, its a great choice.
After 2 stays, this is now my "go to" for a night a the theatre in London.