Yang was very kind and responsive. Honestly speaking the apt is pretty well maintained and everything works well.
Bedrooms are spacious and 6 pax could sleep in.
Bathroom is pretty big and even had heating (Air and water) and a fun bathtub. Could even set it to dry your clothes in there.
It is closest to Higashi Shinjuku A1 exit but we managed to walk there on day 1 from Shinjuku Express Bus Terminal. Downslope mostly so it was manageable even with luggage bags. There are 24hr eateries and convenience stalls nearby so you wun be hungry!
The only small complain is the wifi device provided was spotty and couldn’t work at times. Other than that we think it was an enjoyable stay!