I would have strongly recommended this but it is closing soon so I'm not sure about the levels of service ,etc.

The Mitsui Garden Hotel Osaka Premier offers a top-notch stay in the heart of Osaka. With stylish guest rooms, a delicious breakfast spread, and a relaxing large public bath, guests can unwind in comfort. The ReFa room adds a touch of luxury to the experience, making it the ultimate beauty retreat. Plus, its convenient location near Higobashi Station and Watanabebashi Station makes exploring the city a breeze. Whether you're here for business or leisure, this hotel has got you covered with all the essentials for a fantastic stay in Osaka.