I was in Osaka for 6nights & spent 3nights in TokyoInn.
Location was good - was just beside afew metro exits B4,B6,B8 (within 20-40metres). I chanced upon exit 24 fr the basement, it leads to a basement of a building & had an escalator up to road level, you'll be inside a building, the glass door is just like 3-5metres away fr the escalator & it leads you to the main road along the other B exits.
Check in was a breeze, staff guided me to a selfserve machine, when I had long pauses trying to read/understand the instructions, they would return to guide me to the nxt steps. The machine scans your passport & issue the room key. Check out was similar, press some buttons on the screen return the room card to the machine.
There's plenty of lockers at the basement (it's free) if you're arriving very much earlier than checkin time or departing later than check out.
(I transit fr another Osaka hotel and was doing day trip out of Osaka, managed to park my luggage there at 8am, and returned around 9pm for check in).
Housekeeping is only done every 4days I think, I was there for 3nights and it's good bcus I'm not a fan of housekeeping. Fresh towels, floor mat will be hung at your door everyday though.
There's some toiletries/tea at the lobby - you can take what you need.
Breakfast was at the basement, food was decent and adequate - it's free and the spread was not bad. I read saw some other reviews and saw that there were salmon, but my days there was chicken and sardine only sad😞