Im looking to upgrade from my kit 18-55mm and 55-250mm lenses and at first i was skeptical at looking at superzoom lenses such as the SIGMA 18-250mm above. But i've read a lot of good reviews about this lens (http://www.amazon.co.uk/Sigma-18-250mm-3-5-6-3-Macro-Canon/dp/B008B48AAE/ref=cm_cr_pr_product_top. etc), so i was just wondering what you guys thought, as well as hoping that a few contributors have first hand experience with it.
I probably should have mentioned this before but i have been using my dad's camera/lenses for the last few years (as im now a uni student), but i'm now thinking of buying my own canon 60D along with (ideally) one high quality lens that i will not need to upgrade for quite some time. Hence why i was looking at superzooms with good image quality.