Hexen 2 is a game that will kick your teeth in, it's difficult and some classes are superior to others (rogue for example is pathetically unreliable thanks to slightly janky hit-detection) but for its difficulty Hexen 2 (thanks to being built on the Quake engine) gives you fast and responsive movement and an aesthetic that takes the gothic/medieval style of some of Quake into its logical end-point. Outside of movement, you'll find this follows the same gameplay loop of Hexen and Heretic, you search for switches that unlock parts of the previous areas, collect items along the way, and have two ammo pools to draw from (easing the hassle of ammo management).
Should you pick up Hexen 2? If you liked the first and love Quake, definitely, though for modern systems you might want to use the uHexen source port to get smooth performance alongside some more visual options.