We really enjoyed our stay here.. Everything was new, clean and beautifully presented. The apartment was a great size and included two comfortable double beds, brand new kitchenette with fridge, microwave and stove plus all utensils. The bathroom was spotless and everything worked well. The washing machine was very handy as well. There was a pocket wifi internet which was very handy and worked well. The only thing missing was a television, however this didn't really matter to us. Overall, it was great and very warm and comfortable.
The apartment was a short was a short walk from Hatagaya subway line - which was two stops and 130 yen to Shinjuku, a major station on the JR Line (which can be used with the JR Rail Pass available to tourists). It was close to a supermarket which is great for buying groceries. Being on the main road there is a bit of traffic noise, however we weren't bothered by it.