Im using ZAGG invisible shield fyi erhmmmm im not good in sticking those shield but i think it did a pretty good work by protecting it very much. It does make my phone looks more uglier but overall its good, u get a better protection and grip.
regarding the front screen protector, its a bit hard to navigate sometimes due to the grip it has on the screen protector itself. But when the time comes, u'll get used to it i believe