Contrary to your Memphis experience, my now older Memphis Pro has been a dream. It's so easy to clean (internally), heats up very quickly, and pellet use is low: all of this & more compared to my Traeger.
As for aggravation, I would have to list keeping it shiny & new looking. Being all stainless requires frequent clean-ups & polishing.
I am somewhat fanatical with with almost everything I own as keeping things clean, serviced and ready to go: house, car, tools, the list goes on... Is it worth it? At times I wish I had a I don't care
approach to things. I would probably live longer if I did.
I am glad to hear your pit issues are resolved.. After all, cooking should be a pleasurable experience.