I used mine last night for some burgers, it works well but the lid is very strange. mine doesnt seem to be round so I always have a gap on one side or the other but it doesnt really matter....Also I notice on yours the lip at the top of the leg sticks up over the edge farther then mine does....must be the difference between the 18 and the 22, I had envisioned those lips sort of forcing the lid in its place but it doesnt really do that. The burgers turned out good though but kind of hard to mess up a burger lol.
I just got mine this weekend. Oh btw how tight do you guys turn down your leg screws. I tightened one of mine a little tighter and it sort of bent in the metal on the bottom section into the crease of the leg but not bad at all. I just snugged the others. should they be tightened all the way so the metal curves into the curve of the leg? Im surprised the directions dont say anything about this. I dont like leaving nuts and bolts loose.