Although this is not a bad lens, I would not recommend it unless you are comfortable with its limitations.
I bought this lens on accident, but I thought that I would try it out. I brought it on a trip to Gettysburg, and was disappointed with the image quality as soon as I downloaded the pictures. In bright light at the long end, the lens exhibits major purple fringing.
The lens is also rather slow at the long end. Pictures were not as clear or bright as I have experienced with other lenses, even with the kit 18-55mm lens.
If you need the huge zoom range, this does a decent job, but I am going to be returning this product.