This property looks okay from the listing on Expedia -- however, it is located in a DODGY area of Osaka. We were in Osaka for 3 days, and the first two days made us think... um is Osaka an unsafe area of Japan?? Then we went to Shinsaibashi (only 10mins away) and it was SO much better.
Dotonburi is nice, but it is so accessible so I wouldn't recommend staying 'close' to the area. Also, the staff are a bit clueless and not very good at English or communication. Overall, a terrible experience and we won't be back.