One must always make compromises in such a "cheap" system lenses, that's quite clear. So the AF is neither quick (yet langsmaer than the kit lens for sports photography probably totally inappropriate) yet quietly, but hey, that thing costs 170 and makes good pictures, like enough for a beginner me completely!
I'm going to certainly set sometime better and more expensive Objetive (an image stabilizer would be from 200mm quite a good idea, a larger aperture and through the beginning of poor lighting conditions ...), but until then this lens is good service to me. So you can well bridge the saving precious time to Tele and still take good pictures.
About the Lens: The build quality is high (metal bayonet), it fits comfortably in your hand and the frosted surface like. The weight (555g!), The 350D is significantly better in the hand than the kit lens, which has a positive effect especially in the telephoto setting. Also, a (huge) Lens hood is what Canon's not always the case :-(. Also, you can order as the name already says- do macro shots, which indeed is (Macro not always just between 200 and 300mm , Closest focusing distance 0.95m since blurred fast something), but in bright light is also. We may just never forget what this lens will cost, because can not expect L Quality.
All in all, leaving the 70-300mm DG Macro a price corresponding to the very good impression. For beginners who want to get familiar with the matter first before you spend hundreds of euros for a lens, a fine thing.
Although there are of course much better lenses in this focal length range I assign full 5 stars because the price / performance ratio is unbeatable and you can make really great photos with this Objetiv. Defects per se, there is no, who needs more'll just pay more!