I'm puzzled by the critics as well. It's thinner, lighter and faster. It has a better camera, a better display, a better cable, better speakers, better mics and better software. What's not to like?
A better cable, that has essentially obsoleted millions of peripherals. "Use the adapter", not so much - I for one have an in-dash GPS / deck with Pandora and the like that I can't use with the iPhone, even with the adapter, because it doesn't support iPod out. Thanks, Apple.