Thank you so much of the great feedbacks. You guys are awesome.
The reason I was interested in this lense is due to my newbie mistake. I thought the "18-180" is equivalent to 28mm-450mm, not realizing that this is a 4 3rd lense.
Now, the 12-60mm look extremely more desirable due to its practicality. But the price is currently and sadly out of reach ($850)
Well, there's also the 9-18mm at $500, very tempting. I hope Christmas comes early.
BTW anyone use the 70-300 mm . Its the cheapest of them all.