Comment on SuperDuper!

Does what it says on the tin, does it easily and reliably.

Use it for on-site machine backups; ability to make bootable clone very useful when hard drive dies or (hopefully) more normally when swapping out for larger capacity or faster drives.

Yeah I know there are other options on the market, yeah I know that you can do all of this using CLI tools. However this is elegant, easy to use, well supported by the dev and above all is very reliable.

Highly recommend considering if you would like to go beyond Timemachine for backups or if you are upgrading hard drives.