Calm Gatagaya is a travelers apartment building - almost like a hostel but with individual apartments. The space we were in was comfortable with more than enough space for 5 people. We were able to do laundry, cook, use the fridge, shower, and more without issue! The house is about 5 min walk from the nearest subway station, which is then only two stops to Shinjuku. There's a little market street around the corner and plenty of accessible food and convenience stores. Was happy with the stay and would stay again!