Backblaze is handy for being able to get at your files from any device or location regardless of whether your computer is online. I wouldn't rely on it for anyt

Backblaze is handy for being able to get at your files from any device or location regardless of whether your computer is online. I wouldn't rely on it for anything else. A backup service that can't do differential comparisons on your data is not a backup service, it's an upload service.