Yasu's place was very clean and very quiet despite being near many shops and restaurants. The beds were comfortable and warm. The location was very convenient, and was only 2 subway stops from the famous Shibuya crossing.
I recommend walking North west along the Chazawa dori for 15 minutes or so. There are a lot of interesting small restaurants and second-hand fashion stores in the area. It is a small version of what Harujuku used to be like before it became a tourist trap. It certainty is a lot cheaper.
The check in is a bit difficult and did not work for us. Make sure you get the combination to the apartment lockbox before you get there. Otherwise we had a great stay. Thanks Yasu!