It is possible to go to famous area Shibuya and Kichijoji without transfer. You can do whatever you want!! Keio-inogashira line is one oh the most popular line, because this line has some stops in famous area. From Eihukucho station (nearest station from house) to Kichijoji station, it only takes 9 minutes,2 stops, and 10 minutes, 3 stops to Shibuya by rapid train. 11 minutes away from Shinjuku using transfer as well. If you often go to center of Tokyo, we strongly recommend living this area to you.
Even if you can access some popular area easily, you need to buy daily staff at the station or around there. There are some shops and supermarkets nearby station, which can make your life comfortable especially when you are tired from work. There are kitchen court which is dealing with daily products and foods there.