Dropped my phone yesterday and scratched my PowerSupport crystal all up. I was going to order some more but wanted a stop-gap for the time being. I happened into Target and grabbed some of these Belkins. I am impressed. They are not quite to PS or SGP quality but you get 3 for $15. The cutouts are very precise. The shield is a little smaller than others so it may work better with some cases. The clarity is outstanding. I cannot find any rainbows in the set I purchased. Just wanted to throw this out there for those looking for a good crystal protector locally.