All-in-all the lens is capable to beat the cheapo EF-S 18-55mm as well as the EF-S 17-85mm IS and regarding sharpness it can even rival the the EF 24-70mm f/2.8 USM L (on APS-C). If the focal length range was more attractive here the lens would have been a killer but as such it is just a good compromise. GrbT.