The combat feels a lot different than the first game. You no longer have to click on enemies with a cursor, you just click like in games like gothic and two worlds. But that's not a bad thing, as you really have to know when to block or evade as well as when to strike. You'll get enemies that are really tough, then if you roll around them, you can hit them for really good damage from behind. If I had to, I'd say the combat kinda reminds me of Batman AA, in how you can chain certain attacks together. Also, spells are now a must. You can't really play well without them any longer.
The movement controls aren't bad, but combat often feels clunky, because sometimes you'll be looking at a character and geralt will attack in the opposite direction, stuff like that. Other than that, it's not unplayable and actually rather good.