My partner and I were visiting some friends around the Manchester area and wanted a nice place to lay our heads, but was also relatively close to the Northern Quarter and train station, and John's place was exactly that.
John was also very helpful and accommodating, and very clear in his instructions about how to get to the flat, and how everything worked. He even provided us with several different maps of the city in case we needed them!
I would wholeheartedly recommend John's if you ever need somewhere to stay in Manchester.