i have a s4 for a month now. It is quite good. Great battery life, great screen, fast processor, good features like multi-tasking windows and pretty cool camera features.

Overall, am impressed with the phone. I am just gonna get some good back cover and change it a little. Otherwise, it is one hell of a machine. Wish it came with Snapdragon 800 instead of 600 but that is ok. It is still plenty fast. Cant' wait to root it and get rid of all the bloatware. The latest MF3 version has wrecked havoc in root department.

Overall, a good step up to S3