This is by far, the best burger I have had in Las Vegas! I love Smashburger and this is the best location that I've tried! The staff is very courteous and the food is delicious! The restaurant is kept very clean and I love the outdoor seating. The only reason that I gave it four stars is there is room for improvement. Two words - Peanut Butter!!! The Sin City Burger is almost perfect, but a while back I was traveling and found a place that had a burger with egg and peanut butter and it was AMAZING!! Offer PB on the Sin City and POW! 5-stars!!!