i've had mine for over 2 weeks now and not even a single bubble in sight! love the protector. its the best thing to protect your glass with, and have it still feel like glass.
Installed last night and very impressed. Had 3 small patches of spider web, 2 of which have gone on their own and the 3rd is hardly noticeable and I have a feeling this will go too.
There's a slight lift around the edges of the earpiece, I guess that's down to the glass on the phone not being completely flat.
I've had a Spigen tr and a Nillkin, neither of which went on as well as the Anker - although that could be just me having more practice!
Oleophobic coating is also working nicely, a few smears but overall very good indeed.
I'd definitely recommend one especially if you don't want to pay the premium for Spigen.