Pros:Very good carry around lens, well built and very fun to use.
Cons:This lens is quite expensive, but in the end it is well worth it.
I have had this lens for about a month now. I also own the 70-200 L IS 2.8 which is a great lens as well, but big and very heavy. I wanted something that is easy to carry around, I also wanted Image stabilization and a little more length and not quite so heavy. This lens is fun to use, I now take it everywhere and IQ is great. This lens is always on my camera or in my bag. I have doubled the amount of pictures that I have taken since buying this lens.