We stayed 1 night at Liber Hotel Osaka, to visit Universal Studios Japan. Ot is right across the street from the train station, which is only 1 stop away to USJ, or you can easily walk 15 min to the entrance gate.
The hotel has excellent onsens, both inside and outside, which is so wonderful and relaxing after the business and craziness of USJ. The woman's side has a carbonated onsen and a cold plunge. There is a lovely lounge and outside patio overlooking the river, to just sit and relax or have a drink. Overall, the hotel is conveniently located, clean, modern and with excellent amenities. We didnt have the breakfast. It is, by far, the most expensive,at ¥4400, we've encountered. Otherwise, the hotel is an excellent place to stay while visiting USJ.