Approximately 10-15 mins walk from the Higashi-Nagasaki Station which can be long for some people. Do take this into consideration before booking the room.
Also, the station is not covered under JR Pass which means that tourists would have to pay 150 Yen everytime you travel to Ikebukuro which can be quite troublesome at times.
Otherwise, this is a relatively decent place to stay in if you're looking for a value-for-money accomodations.