It seems as Joomla grows, there are less and less good free extensions for it. This extension seems to be a diamond in the rough, it has a good set of options for the average online shop, however the execution and layout are a bit rough around the edges in the backend. The worst part is essentially that there is virtually no english documentation. There are a few help documents in russian which can be translated via google,but even those are quite limited. I will try to use it,however it will be a challenge. I seriousy hope the developer puts a bit more effort into this, it is a rival to most commercial carts I've tried in terms of simplicity,but there is a lot to be done. Without a proper documentation, this component won't get the attention it deserves.