Checking is 24/7, there’s two machines for this (you can use same for check out), it accepts cash and major credit cards. I read some where reception was open till midnight only which is wrong. I was concerned as my flight arrived late to Tokyo then had to travel to Osaka.
The buffet breakfast is excellent, rooms are modern and clean.
20 min walking to/from JR Osaka station.
I’d recommend this place and stay again if return.