It slices, it dices, it makes julienne fries!
Experience points are awarded for the completion of quests, or major parts of a quest, and mindlessly killing enemies will get you nothing more than satisfaction if that's your thing. These experience points can be spent however the player chooses, boosting different abilities which translate over to feats. The bottom line
Bloodlines is not going to change your mind if you hate everything by White Wolf, and it would probably help to know a bit about the games before you dive in. That said, as a complete stranger to the World of Darkness, I find myself having at least a somewhat fun time with the game thanks to some well crafted scenes and interesting characters. Not to give away spoilers for anyone who may be interested in playing, but a certain scene with the owner of the club in Santa Monica, and the entire quest that takes place in a haunted hotel are some of the high points in just the opening parts of the game.
One major criticism of the game that is normally cited is that there are some fairly decent bugs, although I have not yet experienced anything game breaking. The Source engine does seem to have issues with a certain club-goer's dress though, and it regularly flips around all over the place when she makes even slight movements. Funny to watch, but definitely a bug.
As far as value goes, when last I checked, this game was going for $9.99 on Steam, which is why I picked it up in the first place. At that price, even if it was only decent, at least I wouldn't feel burned.
As a final note to anyone who may be interested, make sure to play through the game at least once as a Malkavian. It'll be a blast.