I have the invisibleSHIELD on my Fuze for 2 days now. Everything is dried up and it looks pretty good. If you look straight at it, you won't see the shield, but if you look at it from an angle/side, you'll see the orange peel effect of the shield, but really, who stares at their player from the side? I haven't tried to scratch the shield intentionally, too scared to do it

I would say that I'm very glad that I went with the invisibleSHIELD rather than the clear plastic case and that it's really worth the 8 bucks!
It took me 2 times to put the shield on correctly, because they weren't line up correctly. Once the shield touches the surface of the fuze, it's really sticky and it's not movable.
I followed this video for installation instructions