I used Lyft the entire time I was in Chicago, including trips to and from the airports. The price appeared to be the same but the cars that I got were much cleaner than some of the Uber cars that I got in the past when I was in Chicago.
One thing I definitely won't use again in Chicago is the airport shuttles. The prices have more than doubled in the past six years and the vans are uncomfortable. Why pay over $100 round trip and sit in an uncomfortable van while you're crammed in with a bunch of people?