So I just got this on Saturday, I don't plan on doing a review so I'll just give a quick rundown.
Basically, this is somewhat of a mix of games. It's not wholly an RPG-you don't even level up, persay. You can buy different abilities with experience points, so you could level up your Toughness, which uses melee experience, but your character's "level" stays the same. There are four basic types of experience; Will, Skill, and Strength, as well as a General type of XP that can be used for any of the three.
Combat is NOT turn-based.
It has First Person Shooter qualities; if you level up your skill (ranged attacks) you can even target specific body parts. Please don't misunderstand me though there are very few FPS qualities in this game
Right now it is a lot of fun, although I'm not sure quite what I was expecting. Your character changes to reflect your actions, and the world changes to reflect your choices. You can buy nearly every piece of real-estate in the game; you can take on jobs like blacksmithing or whatnot. I'm still deciding if its going to be a classic game I'll love and remember or not.