Upsell & Cross Sell — Selleasy

The Price is Right, Decent customization, Good Customer Service!
I really appreciate the Freemium model where you pay per conversion, that feels much safer as a small business than committing to an app with too many features I don't need that's way overpriced.
I also think they have quite a lot of good customization options, especially given that it's free (until it helps you sell something).
My one criticism is the backend is a little more text based than visual, although there is a preview of the result, but if you're more of a visual designer than a computer programmer, all the text options are a little intimidating. But it's pretty intuitive! Really, very few compaints.