The service here absolutely sucks! The older blonde at the bar today was rude and sassy. The restaurant set up is unorganized. From the hostess station there is really no place to wait for a table, and don't try waiting at the bar because the bartender will tell you you don't belong there, even though the hostess told us to just wait there until our table was ready. The only reason I give it three stars is for the delicious oreo sundae. The service is really slow but the dessert was worth the wait. Next time I'm in Vegas I will skip serendipity because I feel you can get comparable dessert elsewhere with better service.