7 out of 10 points and recommendedzoom range, IS, Image Quality, Price, Construction, USMA bit wider would have been perfect, Color fringe
I have been using this lens on 5D for travelling. The light weight, zoom range, image stabilization and USM make this lens very handy to use. The image quality of thins lens is very good, center sharpness may rival many L lens once you use a smaller aperture. corner is also very good when small aperture is used.reviewed June 14th, 2010 (purchased for $300)
Although the lens is primarily constructed with plastic, the build quality is not as bad as it looks like. I accidentally dropped the lens on rock from about 1.5m above ground. Nothing happened to the lens while my Hoya filter broke.
The lens produces neutral color, not so vibrant to my taste, but can certainly be post processed in photoshop. There is also color fringes easily visible. Also I wish it could start from 24mm.
For the price, this lens is great on full frame. On crop sensor camera, it's too long for normal use but too short for tele.