I also use a tablet in class and a desktop at home. Although I don't use the tablet as much as I'd like, it did come in handy during those few classes when my professor had the rule "no laptops in class." There hasn't been a single problem with me using the tablet in those classes, since it's easy to tell that it's only being used for taking notes. The laptop also helps with getting through work without hanging myself with an ethernet cable. It also helps that the entire campus is wifi-enabled.
The desktop is used primarily for gaming and projects. I also recommend dual-screen on the desktop. Having research open in one of the screens and the paper in the other is a godsend.
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I tend to disagree with class restrictions. What if the server decides to have fun and sniper huntsman rush? Or scoot rush? Or what if we want to play hide and seek?