People are complaining that this is a low budget project when it is in Alpha stage. Do your self a favor and go find production software not Alpha software if you want perfection. By the way I tried out KVM and it runs so much better and faster than VirtualBox even with multiple programs running...
ReactOS is totally broken garbage that doesn't work. I tried using the official ReactOS VMWare virtual machines. ReactOS crashed when I tried to put a shortcut to Firefox on my desktop. I rebooted. Then I tried to update Firefox. ReactOS crashed again. ReactOS is a cool idea, but terrible in practice. Don't waste your time with this garbage.
There are no 4 star reviews.