This is the second time I've stayed ~1 week at this place (in the same room, no less). The check-in/check-out process is always simple, the location is quiet and a short 10-minute walk from the train station (the station is on the Yamanote line which is the primary loop to all the popular destinations), and this place offers a lot of privacy.
Essentially you're renting a small Japanese apartment, with your own bathroom, shower, bed, very small kitchen area, and a table to set up at. You even have your own, albeit plain, little porch to dry your laundry off of. A coin washer is nearby, convenience stores are conveniently located, the place is relatively clean (good for what you're paying), there are amenities provided for soap/dryer/laundry detergent/etc., and Hisao is a great host. Only complaint is the lackluster WiFi which sometimes slogged but didn't really affect my opinion as it never went down, just sometimes got overloaded.
For the privacy this place provides, at the rate you're paying, and the hospitality provided, I'll stay here any time I can when in Tokyo. Will return next time I'm in Japan.