The finger print sensor is way too fast for me to the point that's a bit annoying. Sometimes I just wanna read the notifications on my lock screen and just by pressing the home button it unlocks my phone and then I have to go to the Notification Center. Also, a couple times I wanted to check the time and right after I press it it would unlock my phone.
Well quite handily the time is at the top of the screen when you unlock the phone!