I think "works perfectly" is misleading if you're trying to quell someone's fears. iPhone 4 IS destined to have issues- every single one has the antenna issue, and every single one has the prox sensor issue. Some USERS don't experience those issues due to network strength in their area or the way they hold the phone. People need to be aware that this phone is fickle. It might be the perfect phone for the way you use it, but some of the issues ARE there.