Very reasonably priced hostel with a cosy Japanese sake bar attached at the first floor. It is a great place to talk to hosts, and meet other travellers and local people.
Towel and shampoo/soap are provided, so you do not have to bring your own.
Just very easy to access from Sumiyoshi sunway station (10 min on foot).
This station is served by both Tokyo Metro and Metropolitan (Toei) subway, so you can plan your local trip with low fare. If your destination is Tokyo Metro station, start your trip with Tokyo Metro. (Connecting these two subway companies costs bit more.)
The area around hostel is still quiet residential area, but you can find some local restaurants, bars/izakayas, convenience stores, super market etc.