I had a long term stay, so I would definitely recommend this place for you to stay for more than a month. My room was cleaned once a week and there is a famous place called Bongo's for onigiri next to Otsuka station. It's also on the Yamanote line which is very convenient for traveling within Tokyo, but close to Ikebukuro if you want to go on day trips. The room comes with a bathroom that has a shower and amenities provided. There is a refrigerator, a couch, silverware and dishes, and a water heater for tea/coffee. Laundry is affordable at the nearby coin laundry and you can hang your clothes inside the room, which was very convenient especially during late/autumn winter the heater was able to dry my clothes overnight. The host was friendly and showed me around the station and the station adjacent, so you will have a very comfortable stay and they are very responsible to any of your needs.