I still enjoyed the interaction of his mother in the show and Sheldon. I haven't watched the show for a year or so now and before that I only watched maybe every third Episode so it could be that I missed a lot of the bad stuff.Sheldon went from being a kind of naive sheltered nerd with social anxiety into being a completely unrelatable alien with no concept of what a human is.
The show went massively downhill after they ran out ideas in season 1