I would appreciate any feedback about experiences running Yosemite on this machine. Mavericks is working well for me, and while I would like to use the iphone hotspot feature on Yosemite, I'm reluctant to sacrifice any speed or performance on this first version. In fact I don't even know for sure if that feature will work in this mid 2012 MBP. Can anyone with a MBP of this age tell me how Yosemite is working and whether it is slow or glitchy ? Thank you ! Erica ---------- I also have 8 gb of RAM and it's a 13 "