I have one, and this review sums up my personal experiences with it very nicely.
mishka
Overall then, this is a fast very-wide-angle lens of average or above-average optical quality. The plus points are its speed and build quality; the minus points are its weight and less-than-perfect optics. I'd say that it's an absolute bargain at $125 (esp for non-US residents, given the current exchange rate...), and is perfectly adequate for most people's very-wide-angle needs.
