Had a good time staying at Dong's apartment. A short 2mins walk from nishi-shinjuku station exit. If you're willing to walk a little bit, you can even walk to shinjuku station & shinjuku shopping area (ard 15mins)
The apartment was clean and equipped with everything listed. Everything was working well. Best thing is that it had a washer and bathroom have a very good drying function, wash at night & dry in the morning.
Check in / check out was easy with relatively easy instructions to follow.
Dong was very responsive & friendly, notify her that the electric kettle seems a bit faulty at 12am+ & she responded and even offered to come down in the morning to replace it with a new electric kettle. When she came over, she was very friendly and polite and we had a good time talking to her.