We had a great time at Tara's! The appartment is bigger than it seems, with a highly furnished kitchen. Everything was clean, Tara's mother was very friendly and Tara answered very quickly to my messages.
The bedroom's window opens on a quiet mews.
The building is ideally located : very close to the subway and the best part of Regent's park. Fiztrovia is full of animated pubs and diverse restaurants. It is less than an half hour walk distance from the shops of Oxford street, and not that far away from Camden either.
We would definitly come back next time we visit London!