Update:

I installed the client on my PC at home last night. I tested it on my husband's MAC and it worked like a charm.

I just used it to access from my office, and again, it worked like a charm.

I don't have any real need or interest in using the more advanced features, such as file transfer, etc, so the free version, which just allows me to see my PC at home and use my email/internet access is perfectly fine. If I want to work on a personal file, well, I'm going to leave it on the home PC, not transfer it.

From the best I can tell, nothing is taking place on my work computer, except visually, and that's all I need.