My Galaxy Mega 2 had a shattered screen.
The repair is pretty easy as long as you take your time removing the glass. It's just held together with tape so just heat it up a little around the edges and use a pick or another small tool and run it along the sides and off she comes.
Take your time and heat it up little by little and when it comes off there will be a ribbon cable that needs to be disconnect from the back side of LCD before the glass comes all the way off. Easy job!