Caribou has the best tasting coffee... period! I'm a coffee junkie and I've tried Starbucks, Dunkin Donuts, Kafein (in Evanston), Seattle's Best... you name it! I don't know about the downtown locations, but I usually go to the one in Schaumburg (Roselle Rd.) and the one on Algonquin, just north of Golf Rd.
Pros: brewed coffee, specialty coffee, whole beans
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