I’ve finally made the jump to Mountain Lion for MacbookPro along with Adobe CS6. I was initially holding off because of reports of instability but couldn’t hold out any longer. Initial thoughts are that there’s not much difference from to Snow Leopard. The iCloud functionality is probably the best thing about it but I’ve turned that off already as it was hogging too much bandwidth constantly backing up data when it didn’t need to. I don’t like change.
The jury is out on Adobe CS6. I mainly use Premiere, After Effects & Photoshop, and I was very disappointed that Adobe had stripped Premiere of it’s Shuttle jog feature as I had become used to jogging finely through footage with the mouse at a manual rate. It does however seem a bit quicker than 5.5 but I’ve also had it crash on me several times which isn’t good in the middle of editing projects. I’ve since gone back to using CS 5.5.