If you need a hotel in Tokyo you can get a good deal on these love hotels compared to big name hotels. You do not need to go there for sex. They are available on hotels.com and bookings.com and such.

The rooms are good size (in Tokyo hotel rooms tend to be small), you get a very luxurious bath room and bath utilities, you can order a tons of food through TV and of course you get some free condoms.

Do not expect amazing lobby, though. Entrances are more hole-in-a-wall style.

Locals seem to have a cultural taboo with these hotels, but as a Western traveler it is a pleasant and fun experience.