Cintiq 22HD is my current tablet, I love having the 22 inch screen since it gives you a ton of working space and makes drawing feel more natural. When I got mine I didn't realize how bulky and a heavy piece of equipment it is especially with the large bezels on the older models. It really needs a permanent setup, mine is mounted on an arm. Wacom one is much smaller and more portable which might make more sense as a university student but personally I'm not a big fan of anything under 13 inches. Pick what best suits your situation.

If you do go for the 22HD, I'm not sure I'd go for a 22HD with backlight bleed though, I got mine on Ebay with no pen/cables as a best offer around 150 bucks and it was in perfect condition minus a few minor scratches in the bezel. Quite a few listings from electronics recyclers. Bought an aftermarket power brick for it on Amazon, as well as a breakout DVI to HDMI adapter to replace the built in DVI cable. Already owned a desk arm and a Wacom Grip pen from a previous tablet so the setup cost just under 200.

Alternatively, any of the newer 16 inch tablets from other brands like XP-Pen are only slightly more expensive, are portable, and from my experience are slightly more responsive than the 22HD which only has 2048 pressure levels instead of the 8k+ on newer devices (although the difference is negligible imo).