I bought a Macbook Pro last year from B&H Photo which came with a free copy of Parallels 8. I installed it with Windows 8 so I could run MS Office Pro (I need MS Access so I must use the windows version). I've had very few, if any, problems other than slow opening of programs. I shut down Parallels when I shut down my MBP and so I have to wait for it to reopen before I can use MS Office. I just received the offer of a $10 Itunes gift card effectively reducing the price of the upgrade to $39 so I need to decide this week if I was to take this offer. Has anyone upgraded from 8 to 9 and has an opinion?