Easy Post Purchase Promo Deals

IMHO the best post-purchase promotions/cross/up-sell app currently available for the Shopify eco-system. Pricing is excellent and it's the ONLY app currently able to take 3rd party payments (paypal, etc). AND it's shows up in the checkout confirmation page, not just during the checkout process. Excellent app and I hope to see it develop further with multiple upsell options and collection filtering.