I watched this with the lady last night, basically because we found it on Amazon Video and thought it looked so bad it could be good. We were not disappointed. This is so monumentally awful, it's amazing. Highlights include random product placement ads for Kiss-themed merchandise, totally taking the piss out of the fact you can get Kiss-branded anything. And the entire Scooby gang (minus Fred - he's too square) dressed as Kiss.
Scooby-Doo! And Kiss: Rock and Roll Mystery (Video 2015) - IMDb
I haven't watched any of the "modern" Scooby Doo stuff - just looking at the animation, it doesn't look "right". I have the original episodes on DVD and my kids and I will watch those from time to time. But the new stuff - no thanks.