For the majority not working

I (try to) use it to backup my client’s websites.

For the majority it doesn’t work, it fails without any clue about the reason of the failure.

And for the worst part sometimes the backup supposedly succeed , but in reality the backup is empty.

This is really bad, because you think to have a working backup but in reality you have nothing in your hands.

At this stage definitely it should not be used by any professional or serious company