I upgraded recently from Mint 13 to 17
and was surprised there was no setting to start
the Backup tool during the installation and then restore Software selection. Or at least a hint to suggest doing that.
There was bugginess as well in this tool.
Until I ran more updates... many of the repositories were
not showing all the software. I think it was around 10,000
packages showing. Now it's around 45,000 packages available.