M's place is very clean as mentioned on the Airbnb site. The house has 2 floor and no elevator, so if you are staying on the second floor then you have to carry your luggage up.
M's place is 6 mins from Kita-Ikebukuro station. You need to take another train from Ikebukuro station. Its just one stop but Ikebukuro station is really big, therefore a lot of walking. The good thing is, Narita Express stops at Ikebukuro and not many tourists take the Narita express from this stop.
The place is just nice for 2 people. Its very tide. Heating food is ok but cooking I don't think so.