I am not sure this will help all users with little quirks going on or not, but I had lagging issues, and quirks myself. Decided to do the factory reset, and re-set up my phone and what a difference. My web is faster, battery seems to get much more life out of it, no lagging issues between button presses, etc. I say if you are having any type of small thing, take the time and do it. I will bet you are happy you did.
