I am. I have no doubt about it. I had to buy an overpriced bumper to stop the reception issues. That sucked. But now I'm happy.
Sure, I think the issues at hand need to be fixed, and current owners need to get free bumpers—at the least—to make the phone as functional as it should have been out of the box. But having played the fool, I'm stoked for all the reasons we've said before. And for what it's worth, the editors at Gizmodo who have the iPhone 4 are annoyed at the issues, but also aren't returning them.*