Excellent backup plugin, the best one I have tried, since it works in low memory. It is similar to the backup/restore software I subscribe to with my host, simple and effective.
A suggestion, just thinking aloud ... can there be an option to backup the non-SQL parts to be split into about 1GB chunks ? Then it is easier to download, I think. And in case of a need to restore just a few files, we don't need to download the whole lot.