The key is to not overcook the shrimp, but they need to soak in the seasoned water for 20-30 minutes to absorb the flavor. Basically boil the water, add the seasoning, cook everything else (corn, potatoes, sausage, onions). Add the shrimp at the end, boil 3 minutes or so, kill the fire and add a bunch of ice to stop the cooking. Wait that time period then enjoy. I prefer the powdered seasonings over the bag style.