Pingdom ranking did not improve, however Google PageSpeed score significantly improved after two weeks of testing: 86/100 for desktop and 72/100 for mobile. Before CDN it was 74 for desktop, so the improvement is significant. CloudFlare improves content delivery in specific areas – for example in Canada they have servers in Toronto, Montreal and Vancouver, and it hardens security. It will also keep website’s cached version online if hosting goes down temporarily. So it’s a keeper.