Overall, a 5/5 experience. Me and my family stayed in Erika's place for 4 days (3 nights).
On arrival we were greeted by Nini who was polite, pleasant and was completing the finishing touches on the flat and room. So although we didn't actually meet Erika, her communication was fantastic and the check in process was made quick and simple with both talking with Erika and meeting Nini.
Flat was just what we needed, huge room which was well decorated. If you are going with a group of friends or family that can put up with each other - this is ideal. 2 can share the double bed and one can sleep on the single.
Good location - simply a walk to the bus routes or the train routes that could get you anywhere in London.
No complaints, lovely experience!