Warrior Within eh...
Warrior Within was quite a change from the first game, and there is a lot of fun to be had, the game makes you look go as you swing off chandaliers and weild dual weapons... running up walls looks awesome as well. Also combat has improved a lot since the last game and it's now easier to fight multiple enemies and you will find yourself dying in battle less, so if that annoyed you in the first game, you can rest easy now.
Critisisms? Well play can sometimes get repetitve, there aren't that many monsters and the boss fights arent that memorable... Also the gams a lot darker and as it's in an enclosed space a lot of scenery is the same. However the graphcs are lovely, and watching the prince do as you say (Most of the time - Sometimes he'll jump the wrong way...grrr) is really great to watch.
Unlocking the life upgrades was a nice idea, although it interferes with the gameplay as you're often worried you've missed the important upgrade and this means you have to backtrack etc...
So overall a nice game, and its a nice sequal to it's equally good (If not slightly better) predecessor.