Great base for exploring London. Literally 2 minutes from Baker Street station which connects to a few of the tube lines. If you're happy walking then it's less than an hours walk from pretty much every central London attraction you can name and it's often down interesting streets or through good parks to get there. Nice and quiet in the evening for relaxing.
Not a great kitchen if you intend to cook big meals as there is very little preparation space and not a huge range of equipment, but there is more than enough good restaurants around to visit or to get deliveries from if you have small children like we did.
Overall would definitely stay again.