Agreed. I've used the cygwin X server, it works fine. I've used a virtualbox linux guest from Windows host (with the GUI running on the guest), and vice versa,

Agreed. I've used the cygwin X server, it works fine. I've used a virtualbox linux guest from Windows host (with the GUI running on the guest), and vice versa, it works fine. Similar, I've used an X server on my linux laptop to display apps from my raspberrypi. Enough memory and cores on your host is necessary, otherwise it's frustrating. You don't need a beast, but a kitten with absolute minimal specs won't do. Edit: be sure to set up shared folders between the guest and host, it makes things easier. scp isn't bad either, but it can be a little easier to just plop/copy files in a directory.