I didn't find it any better. I had the HD on my iPhone 4 for over a year. I had to switch it out every couple of months for a new one. It constantly yellowed and got all discolored. Now of course some of it was probably from my makeup and the phone touching my cheek when I talk, but I've never had the issue with any other screen protector.
They do get rid of the orange peel effect with the HD. It's got a nice feel to it. I now have a Spigen Glas.tR on my iPhone 5 and I will never go back to a non-glass screen shield for iPhone again. I have the Invisible Shield HD on my iPad 4 and like it on that. I don't have any discoloration worries with that device and the quality is nice.