The location is superb. 5 to 10 minutes to train station. Loads of restaurants and convenience stores around, as well as the Tokyo Dome shopping mall with loads of facilities from Sega arcade centre to hot spring.
The owner also lives in the same apartment, meaning that the facilities (e.g. toilets, washing machine, kitchen) are well maintained and functioning very well.
The bar underneath, which is also run by the host, serves amazing food and beer.
I give 5 stars because I can't give 6.