While on a trip to Vegas to experience some great food and good atmosphere, Union was a huge disappointment.\n\nAfter trying a different (and amazingly wonderful) restaurant in Aria the night before, we opted to give Union a shot since they had a seemingly good prix fixe menu for $49. I ordered the Roasted Tomato Soup, the Organic Chicken and the 7 Layer Chocolate Cake for dessert; my partner opted for the King Crab and Jalapeno Taco, the Chilean Sea Bass and the Apple Pie for dessert. We also chose to add the wine pairing for $20 as well.\n\nWhen you go to a show, you don't expect it to peak in the first act - and that's what happened at Union. The appetizers were by far the best aspect of the whole experience, but given that it was tomato soup and tacos, it's not hard to screw those things up. For the entree round, my chicken was a tad overcooked and borderline rubbery. The garlic spinach that came with it was great, as was the tablespoon of parsnip puree that accompanied it. The sea bass was equally rubbery and overcooked, and a delicious sounding risotto that came with the sea bass was slightly undercooked and on the starchy side. The desserts were just OK - nothing special. My cake was on the dry side, but the apple pie was not bad. \n\nI have to echo what others have said about the service. It's abysmal. The guy serving water was the hardest working person on the crew. After we ordered, we barely saw our waiter. It was a revolving door of people coming by (which is not unusual), but our waiter rarely checked on us. He dropped our wine off in the same manner as a delivery person dropping off a package. I was surprised that a wine pairing didn't come with dessert, especially after seeing other places in Aria (and other resorts) offering a pairing with each course. Had we known that, we probably would have ordered a bottle instead, but the waiter didn't take the time to explain that. We found out after our dessert was delivered.\n\nWhile we were there, we noticed two groups get seated and subsequently leave without being served. There was plenty of staff, so I'm not sure what the problem was. They all seemed in a constant state of chaos. \n\nThe atmosphere is not bad. If you want something quiet and peaceful, this is probably not the place, since it overlooks a big bank of slot machines that constantly sing. \n\nOverall, I would definitely not recommend this to anyone going to Vegas for a culinary treat. There are plenty of better options within Aria, and there are several other places nearby to get a much better steak (if that's what you're looking for). Save your money (and your time) and treat yourself somewhere else.