[MPSimmons]

I'm very happy with my experiences with CloudFlare.

My blog has failed several times under load, despite cloudflare being in front of it, but at no time was it a lacking of cloudflare. It's that they are performing a CDN service which proxies the request for dynamic data back to the source (which in my case is the majority of the load, since my blog is very image-light).

Once I set up cloudflare to aggressively cache and serve a page under load, the weight on my blog's VPS was better (the load was down from 70 on a 2-core machine, and the I/O wait dropped from 95%).

Cloudflare does what they do very well, and their CEO (http://twitter.com/EastDakota) is very, very responsive to requests for help.

I'm glad I'm using cloudflare.