We had some initial difficulties accessing the building, as we were given outdated information. Unfortunately as it was wet and cold as we were stranded outside, it wasn't the best start for us!
Once we were able to get inside, the apartment was comfortable enough. The kitchen area is quite small but we were only making breakfast there each day so it wasn't too bad.
Location was really good and only a few minutes walk from the nearest station. There's the occasional siren from the street that you can hear, but besides that it's a relatively quiet location, slightly away from the hustle and bustle of Shinjuku.
Overall we enjoyed our stay at Chez Lily.