I'm looking for a casual restaurant in Chicago or nearby that is known for having a cordial, clean and good-looking front staff, reasonably-priced American food, and open late (if not 24 hours). Restaurants like this used to be a dime a dozen, but this is not the case anymore. Staffings of formerly great eateries like this have declined in their staff's quality; additionally, expressed concerns are not corrected by many non-responsive owners and managers. With several extremely poor experiences lately when choosing restaurants for friendly gatherings, I'm very interested in finding great places to dine in the Chicago area.
Ideally, the servers and busboys - the people you need to deal with directly - need to be cordial and attractive/clean. Preferably, all front staff speaks English and/or Spanish. Thank you very much for your assistance.