Once is a new beautifully decorated restaurant and was very empty for a Saturday night. My husband and 2 other couples that joined us agreed that Once's service was a disaster. After being seated we were quickly brought complimentary water by a bus boy and then crickets...we waited at least 15 minuets before we decided to ask where our waiter was. An unapologetic waiter arrived and took the drink and appetizer order. Waiter came back 10 minuets later to tell us he accidentally threw out our order and needed our order again. The waiter returned another 5 minuets later to tell us the wine we wanted was no longer available. No biggie, ordered another bottle. Another waitress brought the bottle over and presented to my husband (I had ordered the bottle). She showed him the label and then proceeded to open. The waitress did ask if I wanted to taste first. I agreed it was fine but then noticed she had brought the wrong slightly more expensive bottle of wine. At this point I just was just happy to have something to drink and say nothing. Food was good quality but honestly can't remember anything but the bad service. The check included gratuity (never heard of gratuity for only 6) which was not initially told. It was a surprise after they had split the check..hmmm..
Once's staff needs better training. It's a shame because the food is good but but you can get plenty of good food in Vegas especially at this price.