Pros: Very functional and operates as promised. Quick Newegg shipping and great service as usual.

Cons: None so far

Pros: This lens has almost everything you could ask for in a mid-range zoom, with the "L" glass producing truly pristine images. I decided to go with this one instead of the 2.8 and although the extra f-stop would be nice at times, paying $xxx less as well as reducing the weight by almost half by carrying this lens instead has been worth the trade-off. Additionally, the IS lets me get away with hand-held shooting in many situations that would potentially demand a tripod if using a lesser quality product. In all, if you can justify the purchase of this high-end lens, you will not be disappointed.

Cons: Would be nice if the tripod ring mount were included in the box, but that is not a fault of the lens itself.