I frequent the one in Arlington Heights, although the one on Roselle is bigger and better.
I do all my grocery shopping there after work, before driving back to the city. The produce prices are very good, and are good quality. The deli is nice. I can't vouch for the meats, but beyond the standard deli cold cut stuff, they have a large selection of cheeses, olives, premade italian / mediterranean-ish food like arrancini, spinakapida(sp?), octopus salad, fresh mozarella balls.
I also like the wide selection of Italian, Indian, Asian, and Mexican vegetables, spices and products. Their homemade salsa has ruined me for making my own.
Their standard (i.e. American) goods like toothpaste or coffee or soda are cheaper at the Jewel if you feel like making two trips
vegmojo