Kōenji is an fantastic location for visiting Tokyo. Ken’s place was very convenient for the train line and amongst some great restaurants and bars.
The stairs up are steep but once the luggage was in the room they were no problem. The air conditioners were excellent and very quiet. It was great having a washing machine/dryer and the bathroom was modern and clean. The wifi was a bit intermittent some times but mostly OK.
We loved the roof space which was ideal for a sunset drink at the end of the day.
Overall we would recommend and will stay here again next time we are in Tokyo.