We came here twice during our stay in Vegas. The first time to get a couple of milkshakes and the second time to take advantage of the Happy Hour special.
The milkshakes were awesome after a long day of walking. Daughter got the strawberry milkshake and I got the one with rum, vanilla ice cream, and other tasty stuff.
The happy hour special was mixed. For beers on tap, they have Coors, Bud, and MGD to choose from. That's fine, but not beer that I want to go crazy with. The sliders have a thousand island-type dressing that I hold a mixed view on, but they're well worth the $1 each. Note that you have to order minimally three at a time. The chicken wings seemed a bit paltry to pay $1 each for, so next time I'll stick with the sliders.
As for service and ambiance, the place is okay. They took good care of us and we never had to wait long for anything. There are televisions throughout the place that were playing sports. Maybe because of the international crowd at the Monte Carlo, many of the TVs are playing soccer the times we were there.