“Great place to stay”
I stayed for 4 nights in a king deluxe room which was spacious and with a nice view. The room was clean and comfortable, room service was on time and nice, and the staff were lovely and helpful.
The hotel is very close to the tube (Swiss cottage-jubilee line), you may also walk to the regents park, which is one of the nicest in London.
The hotel is being renovated though, you may find it disturbing between 9:00am - 5:00pm. It is said to end in mid October 2016. I left the room before 9:00 and came back around 8:00pm, so it didn't bother me at all.
The restaurant in the lobby is a famous Italian restaurant which had the greatest breakfast. I didn't need to go elsewhere for proper English breakfast.