Junko’s place was perfect for my family of four. We had the space we needed to sleep comfortable and the place was very clean and had everything we needed. The location is great and I fell in love with the local area Kōenji. The town is really cool with a lot of great bars and music... but you are far enough away from it to have a great sleep with no noise. The walk to Kōenji Station is super easy (5min) and along a very fun alley with shops and food outlets. From the station everything is very accessible. I recommend you buy yourself a pasmo card or Suica train card and topping it up with cash to save having to buy individual tickets for each train. It makes it a lot easier. Overall I highly recommend.