Awesome for quickly fixing cheap servers limitations

We started using Cloudflare as a way to both, speed up our (then) slow WordPress page and get a free SSL certificate. Unfortunately, it didn't manage to speed up the process as planned as most of the slowness was due to database connections, but we did keep using it for SSL and IP obfuscation where it does an excellent job. We ended up getting a fast dedicated server and switched to letsencrypt for our professional page, as the complicated system hit Cloudflare´s timeout frequently but I still use Cloudflare for all my personal pages and frequently recommend it for smaller pages with slower servers. Its IP obfuscation, SSL certificates, and CDN function work pretty well, speeding up the download of larger files, other optimizations, especially javascript are a mixed bag, breaking some systems so it's necessary to make some thorough tests for those or just avoiding the advanced optimizations keeping the default settings. It's a MUST HAVE for anyone still not using HTTPS (SSL) on their page yet and very easy and straightforward to set up, needing only a nameserver change in your domain. Despite its ads, don't expect magic though, a slow page will never turn into a quick one just adding Cloudflare unless you have a very specific slow connection for static content.

It was basically instantaneous. I installed it on my personal page one day, tested it for a couple of days, then on the staging website on the company and 2 days after that we had our production website correctly set up. We really needed SSl as Google was starting to punish unsafe connections, we knew right away the SSL worked fine and started to enjoy its benefits almost instantly (the time it took to update the DNSs)