Earlier quoted context omitted.
It's a hilarious page, but I wouldn't call it "informatively" good, you can't easily eyeball the difference between the plans in the way the good ol' pricing grid would show.
There's a pretty 3-column pricing grid sitting unused on the server, after a day of painstaking pixel nudging then 30 days of pummeling in an A/B test against that ugly wall of text you see today. I'm as surprised as you. But I'm not arguing against math.
That's really interesting; how big was the difference and what do you think the source of the difference was?