I got the A10-7850K APU on release and I couldn't be happier. I built my main dev PC with it. The integrated graphics adapter is more than enough to drive 3 monitors (it can do 4 as well) running Gnome Shell. All that using the free drivers, which is important to me because I need it to be hassle-free.

I've never noticed any slowness but then I don't do heavy video processing or hours of compiling C. Light gaming and WebGL demos are no problem either.