I stayed this hotel with my familiy(w. 11month baby and 5years old kid)
Location is perfect. Rapit station is really close and Dotonbory also so closed.
Furthermore, it is next to subway station.
Room condition is perfect. I didn't expect such clean room. The hotel has bed guard to protect any accident for kids to be fallen. Size was proper. They provide coffee capsule and refill them everyday.
Also Room is quite and cosy. Hotel floors are high enough, so noise from road is not noticable.
Main street (dotonbory) is close too. There was no difficulty for my familiyt to vist there.
Personally, if I had chance to stay in Namba station, I'll chose this hotel again.