The document discusses Review Centre's experience implementing microformat optimization on their website. It details their process of marking up individual product reviews and aggregate review pages with microformat properties like rating and itemreviewed. While it took 6 weeks to see their marked up pages included in rich snippets, they observed a 14% increase in traffic to those pages and smaller increases to other pages as well, though there was some cannibalization of traffic between item and review pages. The key lessons are to not expect much feedback from Google during implementation, prepare for significant traffic uplifts, and potential changes in traffic patterns.