10 out of 10 points and recommendedUSM, light weight, Lf/4: not too good in low light but can be compensated using flash. :D
You usually get for what you pay. This time, you get more. :Dreviewed April 20th, 2009 (purchased for $521)
Pros: Fast focusing, awesome IQ, awesome bokeh even at f/4, super sharp.
Cons: The widest aperture is f/4 but it's not a hindrance to take good amazing photos. :D It's still an L and you know what that means. :D