Ryota's place was located a short walking distance from dotonbori and was surrounded by shops, a convenience store is right around the corner and close by is the subway. It was a great stay the only issue being the size of the bathroom, only because we had a traveller who was 6"4 but that is only a small inconvenience, other than that they communicated excellently and let me know if i needed anything to contact them.
The stay was perfect and helped us have a wonderful time in Osaka!