This is a major hidden gem in Las Vegas and is a must-visit. I am pretty sure that if it was on the main strip it would be a lot more popular and there would be lines of people.
I like how it's a hybrid of buffet and made-to-order food during the Sunday brunch (but you still only pay $40 for AYCE). I wouldn't go any other time than during the Sunday brunch because during this time you can try everything. My favorite thing was the Philly Eggs Benedict--amazing. The paninis and sushi were good as well. You get cotton candy at the end of your meal and you can even take home candy from the tiered shelf near the entrance. These innovative ideas make Simon really stand out.
The atmosphere was amazing, the service was great, and there's a nice view of the pool.
This is the one of the best food joints to go to off the strip.