The rooms in this business class hotel are larger than most rooms for this class, however, that's about the only perk you get.
Other hotels also offer a choice of pillows (I suggest you grab one or two), so that is just above par.
The breakfast is nothing special.
Note the front desk is on the 3rd floor. Entering the building at night (narrow hallway) may be a bit on the worrisome side for some people.
That being said, like all hotels in Japan, it is perfectly safe.
All in all, it's a decent place to crash..
There are a lot of choices in Tenmonkan, so you might want to shop around.
Dormy is probably the nicest for the price... More