The Spigen may be a great screen protector but at $70 US it is no bargain. The AO protector, far from the least expensive screen protector on the market, only costs $38 US.Everyone is recommending Abstract Ocean, but the best one is Spigen's EZ Fit Matte protector.
Literally no hassle installing the protector. Done in 1 minute. No lifting/matching up sides. Was a pleasure to install.