I have yet to have any problems with my smoker, other that what I caused for myself. Please follow the instructions on covering the heat diffuser plate with aluminium foil. When fat from the meats that you are cooking (mine was chicken) it will cook right there, and is difficult to get off. When you follow instructions, this cooker is a dream come true.
Now, what that means is that if you have a lower hopper capacity, your pellet smoker will run for a smaller period of time. It also depends on the cooking temperature you have selected for your cooking purposes. However, at higher temperatures, they will provide less smoke; thus would be more suitable for grilling and barbecuing, but not so much for smoking.
Revising Product review to include photos! Excellent size and performs better than hoped for. Doe great job of smoking meats. Did a 12hr Pork Butt last weekend, tasty. Ran into a snag lately with the smoke stack though. Installed a aluminum patio cover over our deck $5,000. Now when I use my Traeger, the smoke has only a few feet to rise due to new roof over it. If windy, smoke billows in circles, trying to escape. And smoke will race into sliding door when opened. Experimented and came up with cure that works 100% excellent! Home Depot for 25ft roll of 6" Flexible Aluminum Duct. The 6" size goes over the hat on top of Traeger stack, pull down a few inches, wrap aluminum foil around bottom to seal. Other end over end of deck rail. Tried to keep as straight as possible, then trimmed to fit when expanded. Works like a charm and solved problem. Now smoke goes out end of 8ft long alum tube and out from under roofline, up into the air. No more smoke trapped under deck. With the flex alum tube, I can place it on East, West or North deck rails for smoke direction. Just thought I would pass this along as it did not effect the Traeger at all. Actually most likely helps with keeping air draft from entering thru smoke stack.
This purchase, the customer service and the lack of understanding from Traeger Pellet Grills, LLC, has been very unfortunate. I've since stopped payment with AMEX and Traeger is now telling AMEX that they will do nothing until they get the damaged grill back. Well, I'm in Florida and my brother is in Virginia, and at his age is not capable of handling a Grill that weighs over 100 pounds by himself. Additionally, he's not a "Grill Repair Man" and does not have the knowledge to tear down a Grill Body including electronics and putting it back together as assembled at Traeger.