10 out of 10 points and recommendedSharp, small, light, unobstrusive...A tad expensive, but worth every penny if you have seen the results!
I used to own both the 2.8/70-200 (very sharp) and its IS brother (a little less sharp, especially wide open) which I sold for this lens - and this one is the best so far, even on my full frame 5D!reviewed January 16th, 2007 (purchased for $1,350)
The IS works really well, and lens is a pleasure to carry around all day, especially in comparison with its 2.8 brethren.
Canon's best lens that come out in a while! Now if they would only make a superwide zoom nearly as good as this...