I just purchased a new S4 this week. My last 2 phones were HTC phones which I rooted and flashed TWRP. HTC provides a method to unlock the bootloader. I only didn't go with a HTC One because of the lack of a removable battery and no SD card capability. Apparently rooting, installing recoveries and custom ROM's is a more involved process with the S4 because of locked bootloader. My understanding at this point is that I need to use the Safestrap method for recoveries and ROMs. My question is what if any is the downside of using Safestrap opposed to the normal method of flashing recoveries and ROMs? My S4 is MK2 with Android 4.3. Thanks.