I like mine. Its as good or even better than the 18-200. You do lose the 15fl the wide end, but you do gain more on the other end. This is why i got this one instead of the 18-200 since I use it more for the long end and 42fl is wide enough for my purposes. I dont think this lens should be compared to the 70-300. Its missing the critcal fl for walk around lens. One thing bad is that one wont get a true 450fl from the 28-300 from shorter distances.