FWIW, my opinion of the ORD FL is that it is small, cramped, uncomfortable, and the food offerings are mediocre (though at least you get food, which is better than at the Admiral's Club). It is also all the way down at the end of the airport, so fairly inconvenient. But if you are a drinker, they do have a lot of booze, and if you're hungry, well, some food is better than none.

Other than that, the regular Admiral's Club at ORD is nicer and more comfortable.