The iPhone 3GS is perfect. However I had some difficulties with the SF-Consulting seller that passes through the Amazon site. The phone arrived 5 days after the German command. Installation problem with Free subscription. No explanation of how seller and inability to operate the phone. In addition, it is repackaged in a new phone and not a new phone. The announcement did not specify. I had to return the phone in Germany and I was reimbursed for postage. I got a new phone and I met the same problem. After various searches on the internet, I finally know how to install the phone as you had to sync with iTunes. Either install iTunes on a computer, connect the iPhone 3GS to the computer with the USB cable and sync it all to complete the installation of the Iphone.
What I blame the seller is not to give explanation or the installation instructions. In addition, exchanges mail with the SF-Consulting seller that uses translators, beef beef to understand.
Finally, Amazon perfect for that well considered my claim but bad for SF-Consulting