I cannot rate the flat nor the support team highly enough.
I have stayed here before as it is a very comfortable, clean and ideally located flat - close to the beautiful heath and Hampstead itself also with the tube and numerous buses close by for easy access in and around London.
The support team should also be congratulated for their professionlism and speed at responding to any questions or requests we had during our stay.
An excellant place which i hghly recommend.