But I also set up Backblaze for most of my family members, and when my dad's iMac SSD died, even though I physically visited, and even though I had 48 hours there, there was no way to recover the (meager 1TB) contents.
I had to use the pretty-trash web UI and could only select something like 25GB at a time, from a super-slow and janky web UI, and then download those files in like dinosaur-time.
It did save the day; I could get the most important files (there were like, specific ones on the desktop that my dad was mostly really concerned about).
But in my only experience of using Backblaze in actual crisis, it disappointed.
I think (though I have never verified) that their option to FedEx a hard disk would have worked, if I had had more time, and that's cool. But I was only there for a couple days, and was trying to set him up with a new Mac Mini to replace the failed iMac.
So in the end, we said fuck it, and my dad lost a bunch of his shit.
OTOH, 5 or 8 years ago (?), my laptop corrupted my iPhoto library. (Yeah, back in iPhoto time.) I happened to be on a Japanese bullet train from Osaka to Tokyo at the time (editing a Printed Book composition for a gift, and that seemed to be what irrevocably corrupted the iPhoto library). I restored the backed-up iPhoto library (maybe 250GB back then, a tenth of what it is today) to my home Mac and it was restored by the time I got home from the 2.5 hour train ride.
But it also cost me something like $180, because I had Arq configured to use AWS Glacier storage, which (at least back then — does it even still exist?) was cheap to put data into and very expensive to get data out of quickly. (IIRC Arq even paused automatically, to avoid this, but I pressed the Continue button.)
something something pros and cons