We stayed at David’s place in January for one week. The place is perfectly located in Shinjuku, very close to the metro station that was a great benefit as it was cold in the morning and would just take 2 minutes walk to get to the station. 15 minutes walk would take you to the heart of Shinjuku with lots of good ramen spots. There are some good sushi, BBQ places as well as convenient stores within 5 minutes walk too. When we arrived the AC was already running and the room was very warm. The apartment was super clean. We really enjoyed staying there and would definitely come back if we're in the area.