We are a fan of Tokyo Stays, and have stayed at various locations throughout Japan primarily because of the in-room laundry, so this was no exception. The ability to wash almost a weeks worth of clothes was awesome, setting it before leaving for the day and coming back to a finished load!
The area is very walkable to Dontonbori and not far from the nearest metro line. There are numerous food places nearby and a coffee shop right outside the front door. As for the service, it was very nice, the front desk was kind despite having to deal with other tourists before us. The breakfast was enough, lots of choices between American and Japanese breakfast dishes. I was always satisfied and it held me over through lunch and into dinner.
Finally, the room itself is small like most Japanese hotels, but it was comfortable and we had enough space for our 2 backpacks, 2 carry-on suitcases, and all the bags from shopping. The only thing I would recommend is having more outlet access, as many of us need to charge our watch, pocketwifi, cell phone and portable chargers nightly. It because a little difficult when there's minimal outlets.