~Pricey
~Wacky interior (like 14 year old girl's bedroom)
~Potentially long wait time
I'm basically only writing this review to mention one specific thing: the veggie burger.
Las Vegas is a really tough place to find vegan food, especially on the Strip.
Serendipity 3 has a veggie burger on their menu that is really tasty. if you want it vegan, order it on sourdough bread with no butter or mayo.
I ordered it to-go from the bartender and he was very helpful and went out of his way to make sure my order was handled correctly.
Mind you, 15 bucks is a hell of a lot of money for a veggie burger, but it was yummy, and well, when you're stuck sometimes it's pay up or starve...