I have only had my GMG a few months. In my opinion, the customer service of GMG is second to none in the pellet grill market. Due to the fact that Traeger has gotten so big, their customer service is not what it should be. I think both grills produce fine BBQ, but the controller on the GMG is outstanding and very user friendly. Having 5 degree increments is very handy. The p settings on the Traeger can be very cumbersome. For the money, I think the GMG is hands down, the best grill on the market in the 1K range.
TA