I have to admit, I have been to some pretty awful Copps locations, but this one in Sun Prairie is the best I've seen. They recently fixed up the produce section and I think it shows.
Even though I do some of my shopping at another Sun Praririe supermarket because they carry some items that this store does not, I ALWAYS make a trip here to purchase meat and produce.
Their produce is fresh and displayed nicely. They don't keep it sitting in 3-feet high bins with gross produce going bad at the bottom of the bin like other supermarkets. The displays contain smaller amounts of different produce items so you can tell it's turned over more often.
I could wax poetic about their deli and meat department. They have some great pre-made burger options and their cuts of meat are very high quality. Their deli offers good salads for in a pinch.
Plus, go shopping around noon on Saturdays and you will get some of the best samples I've ever had at a supermarket.