Hosts were very friendly, cheerful and helpful. We had no problems with arriving a bit earlier just to leave our luggage, so we could go sightseeing. The communication was fantastic - we received very fast and accurate responses :)
The apartment itself is very cosy, smart designed and has a spirit of old times - we were astonished by the furniture and the overall design :)
Bathroom is located on the opposite side of the main corridor, but there were no problems with accessing it.
It's located pretty close to the King Cross station and "Woolworth's" supermarket.
Summing up, I would recommend it for one or two persons to stay, as it's conveniently located if you want to travel around the city.
Hosts are fantastic and would tell you a lot about the city and local restauratns :)