| United has three United Clubs in Chicago O'Hare nTerminal 1, two in Concourse B, and one in Concourse C. FYI, there is no Concourse A. I have used all three clubs, but the club in Concourse C varies a bit compared to Concourse B. For starters try to avoid the United Club in Concourse C. The major issue is it's notably smaller compared to the B clubs. Therefore space is more limited, and it's serving about 30 gates including flights for ANA. Thankfully I got a seat there, but I can see how during peak times it can get crowded. Furthermore, the food options are more limited compared the B clubs. For example, in main club in Concourse B they served mac & cheese, soup, a good range of small snacks and finger food. The club in Concourse C only had a couple plates of snacks, a mix nut stand, and a small salad station. Having said that, the clubs in B are amazing. I can't vouch for the club in Terminal 2; however, if you have some time in Terminal 1, then go to one of the B clubs. As I mention earlier the food options are decent. In fact you can make a meal out of it you want to since the Mac and Cheese is filling, and the soup is good. Also they serve personal Deep Dish pizzas; however, I haven't had it yet. The food is good overall, and you might as well use the club for a quick meal over spending $15 to $20 in the concourse. Meanwhile the drinks are decent. They used to offer more beer selections for free, but now only the major brands like Miller or Budweiser are free. They charge for microbrews, and while the prices are better than the concourse, but you're paying for the Club already. So cash out on the free beer and wine selections. Otherwise cocktails will cost you, but you can get free soda, coffee, and various juices and water mixes. The water mixes and juices are quite nice, and it's a good selection. Overall the United Clubs are nice, and if you get a free pass with your credit card like I do, or have a few hours to kill, then get a temporary pass. Obviously if you fly United a lot, then it maybe worth the $500 a year membership. Furthermore, the wifi is fast and reliable, and the seating is very comfortable. There are nice lounge chairs withoutlets, stools overlooking the tarmac, and plenty of tables to do work. Even the decor of the club is quite nice and stylish in my view. For $60 you can do much worse at the airport, but I am taking a couple points off for the downgraded quality of the C club which is a major area of the airport. The club in C should be large to accommodate 30 gates including international flights, and the B clubs are a hike from the C gates. That is my only glaring complaint since everything else is solid.