Four star for the food and two for service!! If you're familiar with Serendipity's in NYC..it won't disappoint, but the service was a little lacking. Wait can be a little long during peak time. We were there around 4 pm and it was packed, but it was also very hot outside...summer is bad in Vegas!! So be prepare to wait. Outdoor and indoor seating available. Also have counter service; other side of the restaurant. Full bar. It's located right outside of Caesars Palace!!
Go if it's slow, but I would not wait in line for the food, there are plenty of places to eat and drink on the strip.
A sundae can run you 13.00 and up!!