I am absolutely amazed by this lens. The colors and sharpness are by far the best of the lenses I have, and I\'ve found myself carrying this huge (at least by comparison to the rest of my lenses) lens around a lot more than I thought I would. Focus is usually spot on and very sharp, and AF-S is a dream - this lens is quite fast and very quiet. VR works well and I can definately see a difference when shooting in low light or at ridiculously slow shutter speeds. I haven\'t tried using the \"active VR mode\" used for shooting from a moving vehicle nor have I done a lot of work with it mounted on a tripod, so I don\'t feel I should comment on its tripod collar or active VR mode. This lens is much bigger and heavier than the others I own, but for the most part I haven\'t found is so much so that I can\'t handhold for an entire football game or so. I\'m not sure I\'d be super excited to carry this lens hiking with me, but it does take excellent photos that make it well worth the extra weight and bulk. The bokeh is great and OOF elements look really nice in photos. I think the color of this lens is the best in my lineup. I\'ve used this lens for mostly sports and some animal and people portraits, and I love it. I have yet to try it for shooting birds, but I feel the 70-200mm zoom probably won\'t be enough without a teleconverter, which I plan on purchasing hopefully soon. I also have to try to find a camera bag that can hold this baby along with my other lenses. Overall its an excellent lens that I can\'t wait to use more.