i'm loving many features, but realized how great Siri is while watching old episodes of Seinfeld yesterday. I wondered how old Bryan Cranston was when he was Tim Watley, or information on other actors that popped up in episodes. I just started asking Siri questions and I was impressed by how well Siri understood me and responded to pretty much every question.
I am excited to use Panorama feature when the weather is better. I tried yesterday, but the weather was so crappy there was nothing nice to shoot. It worked flawlessly though.
This is an improvement over my old 3GS as even with updates of OS the 3GS could not perform a lot of the new functionalities.
However, other than the slightly larger screen I don't much difference with my girlfriend's 4S. I mean, a lot of the features mentioned above like panorama and others are also available on the 4S.
I usually carry my phone in my back pocket. I may have to change my habit, I am afraid to break the phone as it feels a little flimsy.
My biggest beef is how terrible the maps are. Some experts are comparing these maps with the google maps and it is not even close. Imagine that they do these tests in San Francisco, the best spot in the world for Apple maps. Don't expect any maps when you travel.
Any ways, it is a nice phone but not a life changing experience. It is quite expensive but I like the integration with my other Apple products and Apple has great after sale service.