My overall experience was very good. the apartment located between the Hiroo & Ebisu metro stations, which is a district scattered with nice restaurants and wine bar; convenience store and post office is around the corner, which helps me a lot cause I brought a lot of books (better post it back home than pack in my luggage)
From Ebisu, it's walkable distance to go to the Tsutaya T-site mega book store that opens till 2am; from Hiroo, its just one station towards Roppongi.
I stayed for two weeks, with the washing machine and a small balcony I don't even need to go to the coin-paid laundry.
Miss Yoko is very friendly and helpful.