This product is 3X better than Marketpress but it still needs improvement.
The biggest problem for me was dealing with image sizes and CSS issues. The software authors should spend more time giving the WP user more control/options over image size and image placement. Using this with a non-woo theme is not recommended unless you have a lot of time and money to spend working out CSS compatibility issues. Support is slow but does come. My single request for help took about 72 hours to get a reply. I did get a reply but only after hiring a CSS specialist and solving the problem myself. Still it's free and they provide free support and that does say a lot.
IMO this is probably the best eCommerce plugin for WordPress.