This is a relatively new Toyoko Inn. There are several branches in Namba, so be careful.
I'm not sure if this is the case in all rooms, but the air conditioning and lighting are clean, household-style, so they're easy to adjust, and the bathtub is spacious and I was able to stretch my legs out.
It's also close to a convenience store and the station entrance. If I stay in Namba again, I'd definitely stay here.
However, I was worried because Traveloca isn't well known, so I called the hotel twice to confirm my reservation.
Both times, I was told "We don't have a reservation" the first time, and the local staff seemed unfamiliar with bookings made through this site, as my name had been written in Roman letters and my name was written in first name-last name order.