There is no security box in the room. :/
supermarket is located on ground floor. That was very convenient. :D But I prefer like to ask hotel to have a microwave in the hotel somewhere...(like in the vending machine area..)
OCAT (Osaka City Air Terminal) is located on the next building. you can accces to there less than 5 minutes.
Subway Namba Station is 5 minutes by walk through the underground path.
There are tons of restaurants (Japanese Western Chinese Korean) around this area.
You don't have to waste money at Kuromon-Ichiba :)
(That place is so ridiculous about over pricing.)
Anyway, the hotel was good enough for coulple days of stay and I will come back to this hotel if I have a chance to visit Osaka Namba Area.
Just one point. "Security box"