I've been a Parallels user for several years and have recently upgraded to the latest version, after purchasing a new MacBook Pro. The result is staggering. I also use a PC on occasion and the experience on the Mac is so much better. Transition from Mac to PC and vice-versa is completely seamless, which gives me the impression of having a single operating system which can run both OSX and Windows apps, blindingly fast. Installation was simple and every applications I have run (including Autocad) are perfectly stable.Kudos to Parallels developers!