Only useful in some cases Pros: very fast, doesn't hog CPU or memory like CrashPlan Cons: deleted files are only retained for 30 days. Backblaze is essentially only useful in cases where a hard drive completely fails / external hard drive is physically broken. If a hard drive starts slowly corrupting over time, or if you accidentally delete files and don't realize it within the 30 day limit, you're screwed. Absolutely useless in those cases.

Unreliable; backblaze LOSES LOTs of files!! I have had the year plan for a year, on 1 computer, with 1 big external drive, about 1.3 TB of total data. But whenever that drive was disconnected, Backblaze would begin deleting its backed up files, after just 2 days! The Backblaze docs claim that it will hold my files for 30 days, but it begins losing or deleting them after just 1 or 2 days!! I have contacted support a year ago about this, but nothing was improved, the problem persisted constantly. It was also extremely difficult to cancel the recurring $99!

Unreliable For Business Use Unreliable For Business Use We used Backblaze, but they closed our account due to a fake DMCA complaint without verifying its validity or checking for the existence of files in our account. Their customer support is unreliable and often response is computer-generated AI nonsense. I wouldn't recommend using them despite their good pricing model. We were not even given the chance to move our files. Luckily we have a backup with Digitalocean otherwise we were secrewed.

Support is absolutely terrible Support is absolutely terrible. All you get is canned responses and ZERO actual care for your specific issue. One of the worst customer support experiences EVER.

TERRIBLE customer support This service is the WORST! Expensive and their crappy Zendesk support is a joke. No way to contact them via phone. They're supposed to be available via chat during business hours, but I've been trying for WEEKS to get assistance. They just send links to outdated Help articles with poorly written, incomplete instructions.