Overall, a really solid and enjoyable game; great world, great story, and lots and lots of quests, secrets, and odds and ends to explore, basically everything that makes an amazing classic RPG. That being said, if you don't like the elements of a classic RPG (slower pace, character building, lots of text, running around and, of course, older graphics), this probably isn't your game, but if you do, get this game right now.
I do have two warnings though. First, the magic system is subpar, or at least the combat spells are. They do little damage, but don't cost too much and cast as quick as you click, so as a mage you just end up spamming your right mouse button until things fall over... consider fighter instead.
Second, the game has a few ridiculously hard bosses. I never actually managed to finish the game as the second-last boss was immune to all my spells, could always blind me (I think it bypasses all resistances), and could insta-kill me and all my maxed-out summoned minions. Getting to a high enough level isn't enough, you pretty much have to be following a guide to stand a chance of finishing, and being forced to min/max really spoils the experience for me.
Still, those are the only things I found wrong. Even at full price, you really can't go wrong with such a gem; just stick with it through the first quest (it'll feel like a bit of a slog at first), make sure you are following some form of guidance for leveling, and you're in for a great time.