Holsteins is probably the most mismanaged restaurant I have ever been to.  Typically, when I go to Vegas, I like to have at least one meal that isn't quite as formal (and we typically pick something fun like Burger Bar, BLT Burger, Pink Taco, etc).  This time we decided to try Holsteins mostly because the Cosmopolitan is such a nice hotel.  Unfortunately Holsteins wasn't up to par with the service level in the rest of the hotel.  It took about 30 minutes to get our food and they got the order wrong.  They corrected the food part but never gave us our drinks.  About halfway through our meal, the waitress informed us that they weren't making the drink my wife ordered that night (very strange) and they still hadn't got my strawberry milkshake.  We finished our meal and one of the managers came by to clear our plates.  He asked how our meal was and I informed him that I still hadn't gotten my strawberry shake (had mentioned it to the waitress when she was by earlier).  It finally arrived about 15 minutes later (in fairness, the manager did apologize and took the shake off our bill).  We noticed 2 other tables complaining also about the time it was taking to get their food.  All throughout this process they typically had 6 people on the floor (2 cocktail servers in bright red dresses who the bus boys were just hanging around and flirting with, a couple of hostesses...one that was just standing in the middle of the floor and doing nothing, and a couple of managers that weren't doing much of anything).  Although they couldn't just go to the back and flip burgers, my thought process throughout was that they should have had less front end people and more in the kitchen.  If this is typical of this restaurant, we will just frequent the other burger restaurants the next time we're in town Honestly, they're a dime a dozen in Vegas and the service at the other places I mentioned is far superior to Holsteins.