I was using CloudFront and then my ISP announced 6 mths ago they were beta testing their own CDN and I jumped aboard. After just recently asking if their CDN supported https, I have found they are actually partnering with cdn77 for their CDN services, so have really been using them for ~6 mths
I don't have access to any of those sexy usage reports and graphing though
Is one of those "many more features" include the ability to restrict CDN be geo-ip? For example, I would like to say that only end-users in xx region are served by the CDN and everyone else is served by my server - helps manage CDN costs