I've got little experience with the newer osx, more with the older versions.

A few months ago, a customer had an Mac and multifunctional printer, but it would not work on the Mac. I was there to install a laptop for his work, and could easaly install the printer. Then he asked for installing it on the Mac.

After trying a lot of options, I got it to work, but definatly not as easy as everybody say's it was.

So I guess it's easy with the os you are used to, but more troublesome if you are new to it.

As far as virus / malware.... Maybe it's because I'm carefull out there on the internet, but my pc is running beautiful. And I did not got infected the last 18 years. Watch out what you accept and you'll be fine.