Cozy as a capsule hotel (which it was). The capsule was on the warm side (where I prefer it cooler), but the bed and pillow were hugely comfortable, the amenities (toilet, vending machines, walls of manga) were great and the staff was helpful and friendly and put up with my broken Japanese. I took a taxi there, but it turns out there's a free shuttle from Terminals 2 and 3 of Narita. (I was in Terminal 1 and Expedia didn't mention this, so I didn't know about it until I was there.) The next time a night there is in the $30's, I'll absolutely stay there if I'm near Narita Airport.
I took a walk in the morning after I stayed there, and I passed by a Lawson's and a 7-11 (and a vending machine where I bought a Mtn. Dew); that seems to be about it for stuff in the area though, unless you're interested in business, houses or a shrine.