I realize it to be the right size. 4s was a trifle degree|somewhat|slightly|alittle} small, Samsung, HTC want etc, too freaking massive.
Speed on the 5s is incredibly nice, and therefore the fingerprint un-lock - although awkward initially, has hooked Maine. I cannot imagine having to place in an exceedingly PIN, or draw a pattern to unlock my phone once more.
My one criticism, like forever, is that the battery life. I finished up shopping for separate battery packcharger for those days im on the opt for 12+ hours, because the phone barely makes it through a full day with Bluetooth and Wi-Fi perpetually turned on.