We only use Parallels to run Windows XP (still) to run Quickbooks Pro 2012. However I've been a user since version 5 and have been very pleased with each upgrade to date. I was nervous about deleting Version 7 in order to install Version 8, but have no regrets. The installation could not have been easier: download, open installer, and enter activate code. In a very few minutes your'e up and running. And you're running even faster than the previous versions. Great upgrade.