We had three comfortable nights in Nick's studio. The Studio is perfect for two people, for three it's a bit tight, but feasible. It is very well equipped. Nick is a very helpful and friendly host, there was even milk in the fridge and a forgotten T-Shirt was sent by Nick right away. Thank you very much again.
So, if you don't need a view, and a ten minute-walk to tube would't interfere: That's the place to take.