The flat is located in the Northern Quarter, a short walk from Piccadilly station and close to many restaurants, bars and cafes. It is very convenient for exploring the city but the downside is that it can be noisy at night (we stayed over on Friday and Saturday nights) when revellers are out on the streets...so if you're a light sleeper bring earplugs!
The flat is small but has everything you need. There were six of us in the flat which felt a bit tight but we were out during the day anyway so wasn't an issue for us. The two sofas in the living room turn into sofa beds so there was enough room for all of us. It would have been even better if the bathroom fan extractor was working (it gets humid quickly after six showers!).
Kitty was very communicative and easily reachable. A fantastic host!