OK, let's move beyond assertion to proof with citations and links, if possible. I'm personally of two minds about this but I'm skeptical of anything where the feds are using a money carrot to accelerate implementation. Since your area is math, some direct comparisons of math skills taught by grade level using the previous curriculum and instructional plans with those under Common Core would interest me.
I would recommend reading at ccsstoolbox.com and corestandards.org, where the new standards are laid out quite plainly. It’s not the work of the devil or some grand communist plot I assure you.