Welcome!
Do you want advice toward a really good, solid, dependable pellet grill, or a cheap one? Not being a smart alec - but trying to be honest, and save you further frustration. Frustration = money and lost time.
Stick to
quality brands.... And when I say that I mean MAK, Memphis, Rec Tec, Blazin' Iron Works, and perhaps a couple of others I am overlooking here.
Plan on spending around $1000 or more if possible in order to get get something that is make of heavier metal than the ones you mentioned, have really dependable controllers- and have a much longer warranty - and
most importantly... one that has a reputation of great customer support.
Look, ANY pellet grill out there will usually..."work".... But you have experienced the "trying to save a dollar blues"
. I am a founding member of that fraternity
. BUT - it just does not pay to try and go cheap - and expect reliability, and quality support. Companies cannot make it work - and make a profit.