Great location - less than five minutes walk from Yoyogi station, with Minami-Shinjuku station even closer. Many convenience stores and small eateries nearby, as well as a larger supermarket minutes away - very convenient for stocking up.
Also only around 10 minutes walk North to Shinjuku, or south to the Meiji Shrine and Yoyogi Park - can't fault the location.
Sadly we seemed to have 2 very loud neighbours staying on the floor above us for the last few days of our stay, which woke us up when they returned late at night and when they left in the mornings.
Mattresses/futons somewhat on the thin side, so some may not find so comfortable. Bathroom also somewhat on the small side.
We had an issue upon Check-in with cleanliness of the property. This was resolved by the host, who is very helpful and friendly. She has also assured us that she has changed cleaning company after our stay.