ML, in the last couple of weeks, has grounded to a halt - virtually unusable.
Safari is having bizarre Graphical glitches in which it takes a good 15 seconds to re-size a window and freezes completely after a couple of tabs and quite a few apps are having trouble with resizing/ moving their windows around and freeze completely before too long. (Including iTunes, Calendar, Reminders etc and even PS)
Memory management, for some reason, has gotten alot better in the last couple of days. It used to drop from 5-6GB free after start up to single digit MBs after about 20 mins with virtually nothing open. (Double digits, as in, 12MB or so.....)
The issues don't sound too bad at all, but the system really is unusable.
(Late '12 iMac 27", base model)