Eh, I could care less. All the iPhone is to me is essentially an iPod that can text, go online and play media but sucks at what it was originally designed to do. To be a phone.
I've read reviews that the calling is horrible compared to other phones today. This isn't AT&T's fault either cause in one of the reviews by PC Magazine, they used a BlackBerry Curve using the same AT&T service with the same reception at the same location and the Curve had way better call quality and clarity than the iPhone.