The Galaxy S4 is a Horse of a different color. When you first get it, it's a great new device that you haven't had before (Amusing you haven't used TouchWiz before), the features are vast and the options are there. You tell everyone about it for a few weeks, show it off here and there, and then you really get to see what the Galaxy S4 is. You realize that the interface is getting dated, it's starting to lag a bit as you move throughout the OS, and it seems like its missing.... something. The Battery has something to be desired, with the Specs that this flagship device puts out, it should definitely have a larger battery. However, Samsung is still nice enough to let you open the back to get to the battery, So if you wanted a bigger battery you could absolutely do so. The Screen is beautiful, but that does come with a price which goes back to the battery. It takes a lot of power to work that beautiful display. And in terms of TouchWiz, Which already looks and feels outdated, doesn't seem to be getting an update any time soon (If ever on the S4 for that matter).In the end, the S4 is a great device that leaves you longing for more. It's great for awhile but eventually it leaves you wanting more, which I guess is the end result to keep you coming back!