I never minded longer charging times. Most of the time I charge my phone overnight anyway. And, when I was in a rush, I just used the charger that came with the phone.
The bigger issue to me was the inductive back making the phone really thick, and precluding the use of most of the available cases.
To me, the convenience of not having to plug the phone in at night was not worth having a bulkier device that did not fit any existing cases.