While there's not a lot to dislike about pellet smokers, it really comes down to your cooking/grilling style. Some Smoking Geeks prefer pellet smokers to traditional smokers (or even the Green Egg style smokers) testifying that flavor is superior to that of other styles of smokers within the price range – and it's hard to argue with them. While Traeger is the pioneer, there are other brands that give it a run for its money.
This website has a lot of negative reviews... I mixed some salt and pepper, rubbed onto some ribs, and put on the Traeger. After about 5 hours sitting in my a/c living room, looking out the window, at perfectly managed temp, the ribs were done, perfect, juicy, with a beautiful wood smoky flavor that I've never gotten on charcoal or even in restaurants with professional pitmasters and all. I did phone Traeger when I was putting the grill together and doing the 1st burn in, there were humans there (!) and they were knowledgeable and helpful on the 1st time.
Pellet grills come in many different sizes with a variety of features. To take the top spot among pellet grills, the Camp Chef SmokePro DLX Grill offers the best combination of grilling space, heat control, and easy-to-achieve flavors that will create tasty meats time and time again. The grill makes cooking with pellets quick, easy, and enjoyable no matter how much skill you have on the grate.