I have owned a Mac since 1987. I have three in my house in 2014 and — unfortunately — upgraded a MacBook Pro-Retina 13 and a 27-inch desktop (go see how much all THAT cost) to Yosemite 10.10.
What a fucking disaster.
DO NOT UPGRADE YOUR FUCKING MAC TO YOSEMITE .... unless you like spending endless hours trying to fix stupid shit little bugs that Mac left in when they rushed this OS out.
I thought I hated DOS 8 ... (still do...the most ridiculous "upgrade" ever conceived).
But when you've been a "Mac guy" for as long as I have you expect Mac-smooth transitions.
If you have Maverick ...keep it, because you ain;t getting anything "smooth" out of Yosemite.
DO NOT UPGRADE TO YOSEMITE
Now, I gotta spend hours trying to backgrade to Maverick ... and I'm going to attempt to have the Mac Help people walk me through it. (yeah, lot's a luck!)
I am soo beyond pissed.
How fucking un-Mac-very-DOS can an "upgrade" be? Try Yosemite and find out. Something incredibly simple will be soon fucked up, you won't believe it. And I did this on two units that are two-months new.
I knew I shoulda' stayed with Mavericks.