Rei's apartment is located near Kunitachi station (JR Chuo line) – if you catch the special rapid, you'll get to Shibuya in about 30 minutes. It is about 15 minutes walk from the apartment. For some it may sound far but my husband and me loved the walk, especially through the path with the shaded trees. Apartment is perfect for just two people. The bed was comfortable, my husband loved it. He slept very soundly! The apartment is right next to a kindergarten, so you might be awake to the sound of kids playing. As for me it wasn't a problem as I myself is a preschool educator! ^^
Our apartment is on the second level so bringing up and down your luggage may be a challenge. Just have to keep that in mind.
Rei is very prompt at replying your messages and she even suggested me some shops to visit around the area which we really appreciate. The neighbourhood itself are full with eateries. You'll find Mos Burger, McD, Tully's Coffee, Starbucks, sushi/udon shops, stationary shops, clothing stores... on and on and on. You have to visit the area yourself!
Also at the train department store, Nonowa, do visit Hamamonyo store. It sells pretty Japanese stuff with cute modern patterns. I think they make awesome souvenirs.
Wow, I have a lot of good things to say about this apartment and the neighbourhood! I absolutely recommend the place, especially if you love walks!