Yeah i don't understand what happened to Mayer musically. I had Room for Squares and Heavier Things and I used to rock out with my man.
Everybody that knows me knows I was a John Mayer head. But like you said after Continuum dude fell off.
I can't get into any of his new stuff.
Apart of it was the fact that he did a interview talking about him having a David Duke "cock"

. Which kinda put him in hot water with folks. It didn't help that he was a well known a$$hole, so he's stuck on making shytty AM radio music for all eternity 
. The bassline, then the violins, then the horns, and last the drums. 
. Last album Mayer did that was tolerable was Continuum
. Dude makes music for coalminers and gravediggers and shyt
at best.