Yes, I do have a GMG Davy Crockett. It weighs about 60 pounds so I consider that to be sturdy. I think it's a great size for us travelers. If you go to the 'cooking' forum, and do a search, you will pull up several discussions about pellet grills in general and the Davy Crockett in particular.
It seems to work best for slower cooking - ribs, pork roast, tri-tips. I like the fact that you can set a cooking temperature, stick the attached meat thermometer in what you're cooking, then go about your business for the day (FOOTBALL !). The wireless option allows you to keep tabs on the grill from anywhere.
Pellet grills are not perfect - They need electricity to work, and you will not get the strong smoky flavor that is normal with a mainstream smoker. But I really like the convenience of mine. The fact that I can set it to an exact cook temp anywhere from about 185 - 450 degrees in 5 degree increments and it will hold that temp is great. Just like a household oven, but with that great smoke flavor added to the food.
There are several brands of pellet grills out there. If you decide to get one, make sure to get one with a digital readout and that also allows small cook temp changes - as stated above, I can adjust in 5 degree increments.
Been using my pellet grill for several years now and I have become a big fan of them. I also carry a small Weber charcoal grill for burgers and steaks. ALTHOUGH, the next time I'm doing steaks for a crowd, I'm going to use my pellet grill.