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.

What an awful service What an awful service. Their backup client is terrible, expensive, and so slow it's worthless. I regret signing up with this useless service.

Good service, but canceling is ridiculously difficult 4star because their customer support pulled through. I kept subscribing for months after my computer died, because the process for canceling was way harder than it should be. I finally got my act together and asked for backup of my data on a $204 1TB drive. I had some issues recovering data that if unresolved, which would have resulted in a 1star review, but within 1 day their support gave me a workable solution and I am satisfied. The process for canceling service is ridiculously tough, and I checked through 3-4 different options and it seemed to work, but I don’t know if I checked too many or not enough. Regardless, it worked out, and if I needed an automatic backup in the future, I wouldn’t hesitate to consider Backblaze.

TERRIBLE PRODUCT I used Backblaze for a few months and then when I upgraded my computer to Sonoma it quit working and there was an annoying pop up window that said my computer was not backing up. When I contacted support they sent back a super complicated solution and the links they provided did not work. Furthermore once you download their product you cannot uninstall it by yourself. They built that into their product. DO NOT USE THIS SERVICE OR PRODUCT!

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!