This apartment is fantastic. It was furnished generously with 2 beds and a couch that was able to fold out into a double bed. We were provided multiple heating options during the winter, so we were never uncomfortable. The apartment, albeit smaller than expected, was perfect for my holiday as it was a comfortable stay in a not-so-busy suburb, a very short walk away from the train station, which in turn was a very short train ride from major stations like Shinjuku.
This apartment is very close to everything you will need for an average stay in Japan: it is quite literally a 20 second walk away from a Family Mart, with an additional Family Mart and 7-11 nearby. There are many nice bars, restaurants, and live houses between the station and the apartment so you will never feel like there is nothing to do locally.
The apartment came with a washing machine, but no dryer although this was not an issue at all because the apartment is a very short walk away from a coin laundry with nearby convenience stores to kill time.
Koenji, the area this apartment resides in, was once known for being the punk capital of Tokyo, so the place itself is very interesting to stay in. There are a plethora of neat, quirky stores very close to the apartment and the locals are all friendly and just as quirky as their neighbourhood. There's a reason they call Koenji one of the coolest neighbourhoods in Tokyo and i can guarantee you'll enjoy your stay here.