Having used very many e-commerce packages, this seemed a little strange at first given it relies on K2 with the products being K2 items. However, once you start to use it, you soon realise just how well thought out it is. The level of support offered (albeit, I subscribed to the full support package and went Pro with the extension after trying the free version) has been excellent. This is a developer who clearly cares about the use of his extension and goes the extra mile in support by providing examples of how to alter things. Highly recommended.