I was half expecting these to be rubbish and hard to fit, but the first try fitted perfectly and was much easier than one I'd bought that cost £[] for a single protector. After much swiping and wiping for over a week, it is still clear of scratches, so definitely worth getting.
*** March 2012: the very first screen protector I used in July 2011 is still in great shape, with no need to use any of the others in the pack. Quite amazing for such a low cost product. ***