Thanks for your suggestion.
We started off that way, but Ubuntu was so easy to crash (12.04) and had so many bugs, we backed off and went to Mint. Mint is much more user-friendly for the non-technical ones who must reboot it occasionally and those of use normally using Windows 7 that must come back to make some change that Ubuntu was a non-starter. When you can crash it using Firefox and a couple of other trivial ways and cannot even rely on begin able to shut it down from the GUI, what else is lurking below?
So far, running Mint for far longer than we did Ubuntu, we have encountered only very slow file transfers when you are on Mint and pull files over. When you are on Windows and push files over, you get decent speeds. Perhaps someone will be able to tell us what is causing that soon.