I booked this place very last minute after I had realized I made a mistake in my itinerary, and needed a place to stay for the night in Tokyo. I came from Tokyo Station, about 25-30min away. The host will message you a PDF guide with pictures on how to arrive, but I just used googlemaps and arrived there fine. The dorm is located nearby a lot of other hotels, but if you walk just for a few minutes you'll reach some shops. It's about a 11minute walk to Ikebukoro station. Overall I'd say that the location is pretty good.
The house is divided into two floors, bottom is for males and top is for females, (except there is a kitchen area on the second floor that is coed). Everyone technically gets their own private space, it's not a capsule hotel of bunkbeds, but instead of doors to your "room" there is just a curtain. If you are highly sensitive to noise perhaps this isn'tthe best place for you, but I found that the other residents were respectful, and despite the curtain I think the facilities were quite nice.
The best part for me personally was that the receptionist let me sit with him for 30minutes and helped me adjust my tickets and travel plans. I'd imagine he'd do the same for other travelers! (Thank you so much!)