I just got the iPhone 4s four days ago, when I was in line the person next to me had a juice pack on his iphone 4. He let me hold on to it and it feel great on my hand, I have a big hand and the juice pack made it feel just right and the battery also last longer too. I just order the juice pack plus couple days ago,can't wait for it to get here. I also love my 4s been playing with it all night and at work too. I showed my wife what the iPhone can do and now she wanted to give her 3s for my 4s. Told her nope now she so mad at me. Gust I have to buy her one for Christmas.