Upsell & Cross Sell by SSC

It works! But the interface to assign relationships is painfully clunky and badly needs some rethinking. Very difficult to just visualize what's been set up and what hasn't. If we were larger than we are (more product groups) - we're about 250 products excl. variants - I can't imagine how I could keep this thing up to date. We recently migrated from Nexternal which let us hand pick every relationship for every product which was absolutely awesome but an awful lot of work, so I really appreciate the ability to group similar products rather than only to be able to assign individual products. But by the same token.... maintainability will be a challenge without a better interface.