My wife, baby and I had a great week staying in this apartment. It was well located, 2 stops from Shinjuku and supermarkets are located nearby for our daily essentials. Apartment was well furnished with heater and hot shower for bathing. The kitchen was well equipped with a fridge, microwave and kettle. Comfortable bed and sofa.
The only downside is there is no elevator and the stairs are pretty narrow. If you bring a big luggage and pram like me, it will be a challenge.
Owner was friendly and responsive to our enquiries. Hope to stay here again in future!