I've had my iPhone 6+ for around two years this december. I has always been a laggy mess. I just send it in for repair because auto-focus was messed up, screen was loose in top left corner and the touch would freeze up and require reboot. My carrier gave me a 5S that I could use while the 6+ is getting reparied. The 5S simply amazes me. Just as fast if not faster than my 6+! I just flies... The battery is rubbish tho.. Who has the same feeling about the 6+ lagmonster?