The location is excellent, just 8-10mg NS from the station. 2 convenience stores nearby, supermarkets and shopping mall are located around the apartment. It takes 15-20mins to Shinjuku station. Just one station to Shinagawa and you can go everywhere within shot periods of time.
The environment was comfortable and clean. However, you may hear people walking in a acceptable range of noise. The pillow is a bit soft and it would be perfect to have a slightly longer duvet.
Staffs are nice and response quickly. Overall, I was a good apartment.