We had a fantastic stay at Gwen's place. Her roommate Josh was very helpful, and was very hospitable (he even made us a delicious lunch) and we very much enjoyed his company. The flat has great views, a great living room, well equipped kitchen and is very centrally located. The room itself is spacious enough for a short stay. (Not too much closet area) There is many flights of stairs to the penthouse and no lift so may not be suitable for everyone. But once we were up there, it was fantastic. Would highly recommend.