A great location for the Shinjuku area! Just note fore first timers that this is really close to the Higashimi Shinjuku line, so sometimes the Higashimi station was used in Google Maps instead of the actual address and sometimes produced better transit options, don’t know why. The location is still pretty decent to get around places and near the Shinjuku area, but away still from the craziness. You’ll still get the ambulances and cop cars noise, etc, but definitely a LOT less foot traffic right outside your place.
The AC, WiFi, and washing machine all worked very well. The host’s hospitality went above and beyond in terms of communications as we were desperately trying to get into a few restaurants that required reservations and they called several places for us to try to get us in. The 3 floor walk up isn’t terrible even with all of our luggage and there was a good enough amount of space for 2 people, 3 would be tight, 4 would be annoying.
All in all, if I were staying in Shinjuku, I’d book here again for sure because of the gracious host by itself! The nice place was a bonus ;-)