The location is excellent, within walking distance to Shinjuku, two stations (JR or Metro) with many convenience stores, restaurants and so on nearby.
The apartment itself was spacious for Central Tokyo, with clear instructions on all amenities which are very useful if staying a lengthy time.
Good sized bathroom and shower for Japan also, and not bad if you're taller.
Walk In Robe is large and great for storing suit case and clothing.
Very happy and would return.