So, I didn't have enough room on my weber to do all 18 beef short ribs for a long slow cook, so I ordered this elevated grill accessory to add more area to cook on. The lid covered the whole thing. I placed my air temp probe on the upper grill and cooked for about 5 1/2 hours at 225F maintained with my Slow and Sear. The short ribs were wonderful! That is, on the top grill, but the lower grill they were undercooked and not as tender. Next time I'll remove the top ribs when they hit the correct temp, and continue cooking the other ribs on the lower grill to correct temp. But overall, I really liked this accessory for adding more cooking surface area to the weber kettle grill. I cooked for the recommended time, but believe the meat on the upper grill must have pulled some heat away from the lower grill.