[ghaff]

That describes me as well. I figure Backblaze is a cheap extra pair of suspenders which is both DR and gives me an additional backup made in an independent way. I have pulled older versions of files off Backblaze a couple times when I've needed to but, now, Time Machine pretty much takes care of that.

I also keep a periodic backup in my office as well as various less systematic backups in various ways. I'd recommend anyone keep at least a couple of backups made with different methods. You never feel more exposed than when you need to use a backup and realize you only have one copy of all your data. Hope nothing else fails or you do something boneheaded with the restore.