It's a good lens, but it's not for everyone. Optically it's not far off of the 18-55mm to be honest, and although it is faster at the long end and has slightly better reach, the difference doesn't amount to much in reality.
The main advantage for me was the weather sealing and the 67mm filter thread that matches my other lenses. If you don't need either of those, then you might as well go with the smaller 18-55mm.
Beautiful colors and layering - it almost looks like a painting!