First review, so bear with me. I'm just going to keep it simple.
It's not that good.
I should've known from all the mixed reviews. Oyshi is my usual choice for AYCE sushi in the Vegas vicinity but the last time we went to Oyshi, the quality had gone down a bit and we decided to try something else.
Even so, I'd rather go back to Oyshi than Sushi Mon. Sushi Mon doesn't have as much variety in terms of rolls and side dishes offered. The cut rolls weren't that impressive (rather bland as Michael T. mentioned) and the fish didn't taste exceptionally delicious. I was pretty disappointed.
Plum ice cream was probably the best part of the meal, but you don't need to spend $24 on THAT.