Recently Replaced my Apple IPhone 5 with a Samsung Galaxy S4! P.S I am very impressed with Avast Mobile Security for Android Devices! It runs nice and smooth on Android Jelly Bean 4.2.2!
Edit: Forgot to mention that this is my First Android Phone since I originally owned the Original Motorola DROID with Android OS 2.2.1 (at first it was 2.1 when I got it from Verizon Wireless).
Update: I recently decided to go ahead and ROOT this S4 and use the additional features available to rooted phones for Avast Anti-Theft which I am pleased to report worked just fine even though I own a NAND Protected phone, thank you Avast for creating a way to still use the ROOT mode in Avast Mobile Security even if your device is NAND Protected.
