Cool Out = a great dinner for cheap. Is it the healthiest? No. Is it the best bang for your buck and always on point? Yes. If you don't go for a tray then I don't know what you are doing!
Personally I'm not the biggest fan of the French fries. They are the best side deal in the tray because they give you a good amount of them! Always ask for them Cajun style! If you order onion rings they only give you 3 maybe 4 if you're lucky.
Some Cook Outs take an extremely long time to get your food out, but this is fairly efficient. The staff is usually nice and gives you plenty of sauce. Overall if you are hungry, looking for something cheap and fulfilling Cook Out is the place to go.