I purchased a groupon for Prime Burger, such is the only reason I'm giving 4 stars. Posting full price would have resulted in 3 stars.
The good : service was great and the staff was friendly and attentive.
The bad:
1. it's located in Venetian's food court (which wouldn't be an issue, but if your spending almost $20 for one burger, it would be nice to be a little more enclosed and exclusive)
2. The food is good but not worth the price tag. At the current price tag its pretty Mediocore.
Will I come back? Maybe, but only with a discount.