I decided to stick with Fusion Pro 10 since I do not care for the subscription model that Parallels has. I tried Parallels before I purchased Fusion Pro 8 a year ago or so. I did not care for the way navigation and creation of guest VM's was done. To be fair, I have been a VMware user since VMware was released on Linux back when dinosaurs roamed the earth. I have had Fusion since I kicked the last Windows machine out of our house back in 2007. I use VMware at work. I guess I am used to paying the VMware tax and just assume that it will be a part of my toolset for work. I also have used VirtualBox. I think it works well and the price is perfect if you are on a budget.