Jonathan Dunsky

First of all, I must commend the developer's support. He answers questions quickly and takes action on helping you get the app to work perfectly on your website. I also like how the app works on the variant level, which to me is important. Second, the app is producing results for me. So far, it's worth the cost. I wish it also included post-purchase upsells so it would be even more comprehensive. But for bundling, it beats more well-known apps.

Easy to install and update. The developer responds to emails quickly. Support is top notch. Even the free version is awesome.