My boyfriend and I just stayed for a very quick weekend trip from York. The flat was very conveniently located (although in a popular nightlife area, so if you're looking for quiet this might not be the place for you). Communication was easy, Jerome was not actually there during our stay but he made sure I had the info of who would let me in and was quick to respond. Ryan (who let us in) also had suggestions of places to eat and let us know about a party nearby. I would suggest for a good weekend in London