When I first started using Backblaze, I also tested several of the competitors at the time (Carbonite, CrashPlan etc) and as bad as Backblazes software was, it was still by far the best out of the options.

And from comments here I don't see any other user-friendly options being proposed, it's all just suggestions to glue together some open source software with object storage and be your own sysadmin.