I'm partway through Tesla/Simplicity, and enjoying it. Sure, Kieth's voice has lot a step, but it's still got that bluesy/raspy feel to it. He doesn't sound terrible by any stretch. Perhaps his sound is an acquired taste ... and fortunately I acquired it a long long time ago. I got no issues with this disc at all. Not sure I'll buy it, but I'll come back to it on Spotify.