I love my Traeger. Of course, I bought it at an auction, not new. The model I got is probably about 10 years old & works great. Are they perfect? Nope. They use a hotrod to light the pellets. The rods do go out. The one is out on mine right now. I have a new one to put in but I just haven't taken the time to do it yet. I just light it manually, but that's a PITA. My grill is a rather large model and there are a few different sizes available.
Phil, the smoke is definitely not overpowering. I was used to my old stick burner and that produced way more smoke flavor. The traeger is more subtle for the most part.
There is a combustion fan to keep the firepot burning. Also, there is an auger to put in pellets at preprogrammed times when in smoke mode, or when in regular temp mode they use a probe just like an oven. Basically, if anyone has ever seen a pellet heater in a house, it's the same thing.
I've done everything on this grill. Brisket, chicken, steak, ribs, pork shoulder, standing rib roast, lamb shank, etc. I just did some excellent spare ribs on Saturday and plan to fire it up tonight for burgers.
In all though, I love this grill. If you are a member of Costco, they run a road show at different stores with good bargains.
Check out the Traeger Nation facebook page for regular folks using this grill.