Summary: As mentioned before, it is important to realize that this lens is NOT the kit lens that Canon includes with its digital SLR cameras. It has an ultrasonic motor (USM), which is the reason I bought my Rebel XT's body without a lens and picked up this lens to go with it.
Summary: A good lens for outdoor use. A bit too slow for indoor use, though. I got this to replace the kit lens that came with my Rebel XTi. The kit lens was okay, but I wanted a lens with like quality to my camera. I probabaly really don't need it as I have the 28-135mm IS USM, but I got the 18-55mm first.
Summary: When I got my new camera...a Rebel...I got a macro zoom lens with it...rather than start out learing the camera with a lens like that, I wanted a basic lens to use for routine photos...and to use when learing how to use the camera...it's perfect...ciao