And then after 4 years of backing up (and paying) you find out that BackBlaze silently changed their password requirements and you can no longer log in. Happened to me, lost 2 TB of backed family photos. Their response: "you remember your password wrong". Fortunately I had backups on secondary external drives as well.
My password was correct but included accented characters. They changed the acceptable characters silently in their clients sometime later. After my backing machine finally crashed I was not able to log in again. Unfortunately the support guys were not able to do anything about it.