Not to mention that trying to compare our new 2-hour to Chainspell will always leave you disappointed. Anything less than triple potency is worthless compared to Chainspell? Dude, almost every other 2-hour is worthless compared to Chainspell. Even with the new 2-hours (which, not that that's saying a whole lot unless you're a DRK or SMN), it's still one of the best, if not the best 2-hour in the game.
And you want another 2-hour at that level of quality?
My complaint isn't that our new 2-hour is worse than Chainspell; that's to be expected. My complaint is that our new 2-hour is just plain bad, to the point of being borderline unusable, even without taking Chainspell into account.
Just make it Enhancing Magic Soul Voice, for goodness sake: 3:00 duration, double-potency spells. While additional spell duration would be nice (particularly if it stacked with Composure), I don't think that there would be a whole lot of room to complain about it with those specifications.