Not sure how long the cooks are because I haven't had a cook over 8 hours since I got it. It seems to be fairly efficient and holds more charcoal so I guess it would be longer. I've had 16 hr. cooks with the stock setup. The basket is very tall and looks out of place until you put the WSM together. It sits just below the lower cooking grate (you can still use both grates). Yes, it's the Hunsaker basket. I originally had the plate only that covered the stock charcoal ring but swapped a friend for the full basket. I think I liked the plate only setup better and it's half the price.