<5 mins walking distance to Shin-Ōkubo Station in Yamanote Line, which is conventient.
The building is nicely maintained and stylish.
The surrounding of the building is a bit quiet but overall I felt safe. On the other hand, you can barely hear any sounds at night so you can enjoy yourselves inside the room. However, once you walk down to the main street, the crowd makes you feel like you are in the 'upside-down world'.
Not many amenities available, so please prepare by yourselves. Better to have basic things available there.