I can't imagine any power gamer would choose Monte's sorcerer over the PHB one. Your spell selection is much more limited, and some key spells (the kind a power gamer can't get enough of) are now a full level higher. So while a wizard gets Haste at level 5, Monte's sorcerer has to wait until level 8.
Monte's sorcerer has some nice advantages over the PHB one: extra hit points, a few more skills and skill points, and no need for material components. But the question is, are these worth the hit you take in spell power? Probably not. Most spellcasters use their feats to enhance their spellcasting ability, not to enhance their hit points or skills.
That said, I love the changes, as they make the wizard and sorcerer more distinct from each other.