I've been using CloudFlare for a site with >20m hits per month. 4TB of bandwidth saved in the last 30 days for a measly $20. I do have small issues that arise

I've been using CloudFlare for a site with >20m hits per month. 4TB of bandwidth saved in the last 30 days for a measly $20. I do have small issues that arise, mostly false positives and occasional outages, but nothing too bad at all. Compared with the costs of any other CDN and I would be looking at a rather large bill.