I was looking for a place close to Setagaya so I could be in a cool neighborhood without being in Shibuya or Shinjuku, as this was not my first time in Tokyo. I found Rika and Taka's place and I am so happy I did! The apartment is easy to find, close to the Sangen-Jaya station (2 stops from Shibuya) and a very convenient bus stop that can take you to hipster Shimo-kitazawa in 10 minutes. There are very cool restaurants and things to do at a walking distance. My favorite is definitely the Gotokuji temple. There is also a big supermarket across the street and of course a bunch of combinis around, so you'll have everything you need just a stone's throw away.
The apartment itself is beautifully arranged, spacious (in Japanese terms) and - perhaps more importantly - with a HIGH SPEED internet connection. I used it for work (including streaming) and it worked flawlessly. Taka was a great host, always ready to answer my questions. We will definitely come back! Arigatou gozaimasu!