I've recently taken on some Concrete5 sites and I'm gradually getting my head around it all (have been a PHP developer for a number of years).

Anyway, I too need to change an existing site to add in "related products" in a "If you like this, you might also like" kind of way.

I've stumbled across this add-on:http://www.concrete5.org/marketplace/addons/related-product/...

Has anyone else ever needed to do this, or use this add-on?

Any guidance, much appreciated.