Well, it was fine on the whole, but I did notice something holding it back: you had to push the volume a good few notches higher just to get the same output level as the 4 or 4S. Doing this caused the iPhone 5's on-screen volumedisplay to turn a stress-inducing red color, which is arguably not what you need when you're trying to chill out to some chill-out.
Common sense would dictate this kind of increased volume of sq inches purchased from their display supply chain should yield some substantial discounting on the per unit cost of the display for an iPhone and an iPad!
In Corning's wholly owned display business and Samsung Corning Precision, total glass volume is expected to be consistent to down low-single digit percentage sequentially, depending on the level of normal seasonal inventory correction expected from panel manufacturers.