I've had mine for 3 months and used it twice.. I love mine. I used the cheaper offset
Chargriller a few years ago and this OK Longhorn I bought to replace my UDS (tired of the UDS lid temp swings).
found flat fireplace gasket rope and added it between the side fire box and cooking chamber and with new longer bolts I was able to seal the leak that way. I added gasket rope around the lids, 2 new thermometers in the lid, high temp silicone where the smoke stack bolts onto the cooking chamber and tuning plates. All this for half the price of the Lang. I've always used charcoal and chunks obviously since you can't add when using UDS now with this one I actually did a whole smoke using only splits.