Sitting at my office desk with my brand-spankin' shiny new AT&T 4S. Always have had marginal signal (1-2 bars max) at this location. First thing I do is run a "3G" speed test. On my 3GS, in this exact location, I'd top out at 300kpbs up/100kbps down avg on a REALLY good day. First try today: 3.6Mbps up/650kbps down with 4 bars! 
Camera is fantastic, GPS actually works for me again, restore from backup was super easy. And I haven't even tried Siri yet.
Now, if it just won't drop calls as often as my 3GS...
Camera is fantastic, GPS actually works for me again, restore from backup was super easy. And I haven't even tried Siri yet.
Now, if it just won't drop calls as often as my 3GS...