Building an entire system of class features around the idea of negating negatives you shouldn't be taking in the first place is like building a skyscraper on sand. The class has flavor and style, which I love, but the mechanics make the investment and exercise in futility.
Hargert is right, this class is the only translation class significantly worse than its 3.5 counterpart, the Warlock, which was a mediocre class to start with. No at will powers, the damage from their blast is VERY specific and easy to completely ignore and the powers that they have written are nifty tricks more than combat maneuvers.
You want me to invest countless levels just to be able to hurt myself MORE so I can be useful, but even still never even close to an archer, an Inquisitor (which I find to be weak)or even a rogue.
Ok, why am I playing this class again?