This lens looks interesting but I think I'll wait until Ken Rockwell reviews it before I decide if I want to buy.
And his website is easy to read and navigate, which is rare for review sites.
Maybe I'm too distracted by the formatting of the website. I find his pages to contain ridiculously large size photos that make the article hard to read. No tables or organization of information in a consistent way (or across lenses, cameras) that makes comparisons or reading easy. Very hard to tell if he's actually expert at something or his credibility. All of his observations are just qualitative (as is any typical amateur enthusiast camera website).
I much prefer DPreview.com's reviews of cameras and lenses.