This place is a love hotel, but don't think that means it's shady or gross. You certainly can get your privacy, but I have honestly never stayed in a nicer hotel than this, including some expensive Vegas hotels. I rarely shell out for a nice place, and didn't pay much more than I would for a 2 star hotel.
What I got was a hot tub, massage chair, free karaoke and gaming console service in a clean, fresh, sound proof room. My girlfriend decided to use room service, something I'd never pay for, but it was fast and quite private, coming through a special little box with a buzzer to let us know when they were delivering the food and when they had left.
Honestly, if all love hotels in Japan are like this place, I may never stay in a regular hotel ever again!