This hotel is located in zone 1, a stones throw away from the Gloucester road tube station and a 10 min walk from the National History Museum.
The hotel was great, most of the staff were friendly and helpful. The hotel was always clean and well presented. We did try to check in early but told our room wouldn't be ready until 2pm, but we returned at 2:15 and our room still wasn't ready which was frustrating.
We were offered a room on the 5th floor for an extra £50 a night. This did include a bigger room, drinks and wi-fi. However, I don't believe it is worth the extra charge and would expect free wi-fi in a hotel of this quality. Luckily I had 3G and good signal to overcome the absurd charge.
The room was great, we were on the 4th floor over looking the conservatory. The room was big for London with a desk and arm chair. The bath was big too, after a day of being a hard core tourist it's nice to have a soak.
You do have to use your room key to select your floor in the hotel, which seems like good security.
There is plenty to do on Gloucester Road too and South Kensington isn't too far away either.