Not only is the trade-off not worth it, but the benefit is pretty worthless as well. Overall it's just a waste of a talent point.
Special arrows cannot miss. Skill shots cannot miss. You cannot miss a stunned/knocked down/petrified/frozen enemy. Between the three, the amount of time that accuracy comes into play should be negligable. Even then, you have access to Precision stance which costs NO AP and has no significant penalty if you use it once your ranger is already in a good position. If that's not enough, you can cast Farseer for 2ap and add another 50% accuracy, which can even be used alongside Power stance if you prefer it.
As far as being able to reroll earlier, I say be thankful you can do it at all. The fact that it's so cheap and easy to do really cheapens your class development in later game, like there's no commitment at all.
Last edited by Sotanaht; 03/11/15 09:50 AM.