Amazing value, 7 min walk to station, 2 stops to Shibuya. Lots of local restaurants/markets to explore if you want to start or end the day nearby. The apartment itself is great space for 2, tight for 3 (esp. by American standards), and for four it seems difficult, especially if you have a few big and/or tall party members.
Kitchen is more than enough to make a quick breakfast, and the washer is good as well.
Note: The local metro station is not covered by the Tokyo Metro Pass.
All in all I was very satisfied with the value.