Positives:
Great location in a great area with short distance to tube, restaurants, groceries,
Nicely decorated rooms, clean
Good selection at the (continental) breakfast.
Negatives:
Service at check-in: had to wait very long to check in (1hr in the lobby) with no serious attempt to get us in a room faster.
The first room was in the ground floor, and we could hear the tube every 3-4 minutes (we asked to change rooms and they accepted).
We had a junior suite for four people but the sofa bed for our kids was very small and uncomfortable.
The door to the bathroom/toilet could not close properly, which makes it a bit too intimate for four people :-/.