For that integration it's just the download fees. The transactions do still get billed, but many people can stay within the free daily allotment.
if I use against-the-alliance corp, i will just pay the storage+download from backblaze, just the same as using in-bed-with-alliance corp.
Or does the alliance will ensure i only get charged for 1download per file per billing cycle, no matter if the CDN cache can't hold all the data and they download it many times? Does the alliance ensure (and more importantly, who monitors) it?
Storage Download
BackBlaze .5 cents/GB 1 cent/GB
S3 (one zone infrequent access) 1 cent/GB 9 cents/GB
I'll transfer my 250GB of videos and images from S3 to BackBlaze some day.