Like what many people have already said!:
Very clean and modern hotel-style accomodation,
Underneath the roof so bright light with great air circulation, heating is with a radiator,
Very close to the airport,
Quick metro ride to all the main attractions in London city center

The room is on third floor and no access to kitchen were clearly acknowledged by Alexandra so no complaints! A supermarket just outside the station is convenient to pickup any snacks or water. For our weekend trip, this was a perfect place to stay. Would stay here again!