SpurIT BOGO Free Gift Upsell

I went through about 6 other Product Upsell apps before finding this one which is the only one I found that allowed me to create an offer specific to product variations. We sell maps of different sizes but only have frames for one specific size - so I only wanted the offer to pop up when customers purchased that specific size. This was the only app that seemed to do it properly!

Only just installed it but will update the review if/ when I get an Up Sell!