I had a lovely stay for 6 weeks at Jay’s apartment. The apartment was clean and with most daily necessities provided. Pocket Wifi was a nice addition too! It was also highly accessible — just 3 minutes to the closest metro station (Higashi Shinjuku) and about 12 minutes to Shin-Okubo Station on the JR Yamanote Line. Jay was a kind and highly responsive host who went out of his way to accommodate my needs, such as allowing me to leave some belongings in the apartment after checkout.
Some things to note: as the apartment faces a busy main road, it can get quite noisy at night with police/ambulance sirens ringing frequently. Also, the hot water control in the bathroom needs some time to master, as it’s either boiling hot or freezing cold most of the time. You need to find the sweet spot and fine-tune the knob to adjust the water temperature. Hopefully this can be fixed in the future, but it’s not a major issue.
I would highly recommend Jay’s apartment to both long- and short-term travellers.