Mine rocks. No signal or display issues, beautiful display, super fast. Works great for calls, texts, email, etc. Went by the apple store today to look for a case ... none of the employees had even seen one yet. A lot of them had no idea they were delivering early. I was like a celebrity for a few minutes - "Dude, can I touch it?" "First iPhone 4!!". Everyone was drooling over the thing. Anyway, amongst all the "this phone sucks" threads, I thought I'd post one about my good experience. Very happy so far.