I installed version 2.3.0 M3 on my 1.6 running website, and it works great! It takes really a hush to set up, and the documentation on their website is really exhaustive... I can really recomend this extension to all users!
This component is really great, very easy to install, and in just some minutes it is set up and working! I'm not an experienced user, but you almost can't do wrong! thank you, I'm feeling much safer now because my whole site is backed up! :)