I've been to numerous froyo shops in the Chicago area but not one can beat the experience I have at Cocomero. I frequented this place about 3-5 times a week back in 2010. Although the yogurt topping station was a little unclean at the time, I didn't mind. Now, I'm very happy to see that they've cleaned up (literally) and are catering to customer needs.
The froyo flavors delightfully change every season--a favorite of mine is the pumpkin spice in the fall. One sad change is the elimination of sample cups. But I understand their need to get rid of them since I've witnessed many customers taking advantage of samples. Sigh.