The holy grail of AYCE IMO. This is the place I compare to all other AYCE. Fish is fresh and flavorful. Plenty of different nagiri, cut rolls, and hand rolls to pick from. Whatever sushi you are craving, I'm sure they will have it or something close to it. Lots of side dishes and deserts are also part of the AYCE menu!
Whenever someone says, "I found a good AYCE Sushi place." I respond with, "Is it as good as Sushi-Mon." The answers vary from "No" to "Close" but never "It's better than Sushi-Mon".
This Sushi-Mon is smaller than the other one (http://www.yelp.com/biz/sushi-mon-las-vegas#hrid:owGWHPWX2k4BruoxMgVNOA). Other than that, it's pretty much the same.