I am by no means qualified to give you a legitimate review on this lens as I am pretty new to photography. That said, I took a couple of pictures with my new 18-135, and tried to replicate a few of the pictures with the 18-55 IS T1i kit lens for comparison. I will post them side by side with the settings and am eager to hear your opinion.
ISO - 200
Settings same as pic 1
I didn't realize there is a two picture limit so let me reply with more pictures.