Customer Unfriendly update policy with high costs

The software works pretty neat - that is, Windows is running in a window as a virtual desktop and I can run all Windows-only programs that I need (normal application software with relatively low requirements; games etc. I have not tried). The toggle works well between Win and Mac and is better resolved than competitive products. However, performance is not just superior and slows regularly throughout the Mac. In addition, Parallels hooked very often when you shut down and slow down the Mac even after exiting the software so much that you have to reboot. I have made it my rule to restart after every second Parallels use the whole computer / Mac.

Not at all solemn, however, is the update policy of Parallels, a year will have to buy a 50 euro expensive update for the customer to support the current OS version fully. After two years, the software on the Apple system current even not run anymore and you have to necessarily buy a new version. See current "advertising mail" from Paralells:

"With the planned upgrade to the soon available OS X Yosemite (10.10), consider the following:. Parallels Desktop 8 for Mac is NOT under OS X Yosemite (10.10) can be carried out makes it not be possible to virtual Windows machine on Parallels Desktop to start or use the files 8.
Therefore, an upgrade should necessarily be carried out in Parallels Desktop for Mac 10 before upgrading to OS X Yosemite. This is our latest version that has been fully optimized and enhanced for OS X Yosemite. "

Conclusion: Since you will be forced by Apple through various software and hardware dependencies, more or less the regular update of the OS, to get even with Parallels is not the "updates" about - but fail here charge and very expensive. Although the software does (with a few limitations, see above) what they should. But I would buy the software in no case again and going instead to change to the cheaper competition.