Excerpt: I have had several Android smartphones (and one iPhone) over the last 6 years or so. All have failed in one capacity or another. Some with hardware issues, most with software issues that rendered the phone unusable. I chose the Samsung Galaxy s4 upon recommendation from my father who has had one for about 2 years with absolutely no complaints. I really love this phone's features.
Summary: Great smart phone. I switched from an iPhone. I am usually one upgrade behind, I wait until the current upgrade cost less. The Galaxy S4 is awesome, with lots of features. It comes with a lot of pre-installed apps, but I hid them since I am not ATT any more. The battery life is poor and I hate it. My daughter has a S5 and she tells me that this phone has a way better battery life. Great phone and I would buy it again.
Summary: The phone came in great condition as far as outer appearance is concerned. No dents or scratches. My issue is that the phone takes hours to charge but loses a charge very quickly. Also it keeps losing the sim card. I got an error several tea day that says it lost the sim signal and I have to restart the phone. Not to excited about that. Other than that it works.
Summary: The only down side is the SIM card is smaller than the one in my Galaxy S2, so addition time and effort was needed to go to AT&T and get one converted from my existing SIM to the smaller SIM card. The $10 coist was waived if I agree to answer a survey. The size of the screen is the big standout, as I was stepping up from the S2. I found my prior use of the S2 makes it easier to pick up the control sequences for the S4.