This was an amazing find with no frills, affordable price in Tokyo with close access to the metro lines.
There is self service check in, self service check out, so no staff at all. Only door staff, who help you if you need anything, otherwise you are in your own.
The rooms had all the basics you expect in a Japanese hotel.
The place is close to many features of the city, depending on your own needs. The downside is that you have to take breakfast from other shops, and constantly ask for new tea bags if you drink a lot of tea when at the hotel, as they don't provide enough.
Really nothing major to complain about.