I've never really read anything that Puts has wrote, except for one or two snippets from an article. When this link was posted I went straight to the article, and I honestly didn't even know this was a test by Erwin Puts (that page only says his name in one place, in the top left corner of the screen, I had to revisit the page to find his name placed on the page somewhere). Anyways, I can safely say I am absolutely not a fan of his stuff. It was OK to start with, but then he started rambling about Dutch poets in the 1880s and I got bored. I read through most of the article, and was bored the whole time and thinking how stupid it was that this guy was wasting time shooting brick walls. Also, why a comparison between a lens designed for a DSLR to a lens designed for film based rangefinders?
Anyway, sorry about the Puts rant. Everyone always has something to say about the guy and since this was my first real experience reading his work, I figured I'd put in my $0.02.