It is great to have multiple virtual machines running at once with different operating systems without having to install them seperately; for example I can run Ubuntu server as well as an instance of windows 7 or 8. The setup was very easy to use and set up. There were no issues that we came across during our experience using it. You could not easily access your files from one OS into another but this might be because we didnt try hard enough to figure out how to do so. We are solving problems related to work efficiency.