Originally Posted by videocdn
Content delivery network is secure and stable, can easily handle traffic spikes and server downtimes, your content will never be offline.
It is based on the principle of Content delivery network: dense network of servers worldwide, so even if one of them is down of suffering DDoS attack others will handle you traffic.
I believe there are better choices than CloudFlare, try one of new kids on the block like MaxCDN or <name removed>.
Something in your username tells me you may be a little biased.
Anyway, from reading posts here on the forum I believe lots of people like it. If you're looking for DDoS protection, I don't think the free version supports it.