I have both a S310, & performer. They both have there uses, and can be used at the same time, the gasser is get in the winter time heats up faster for straight cooks,pork chops, steak, fish. Bake potatoas, veggies. the SS cleans up easy it is great.
The performer is completely different I am still learning how it works, on every cook and loving it. Slow smoke is fun & tasty. now I just need to finish out the crowd with a smoker.