Like most plugins, new releases contain changes. The changes we implement are based on user feedback and are generally well-received. Sell Media is highly customizable, so, if you disagree with the design of the cart or templates, you have the flexibility to change it. Like most plugins or web apps, if you want to change something about the default design, it’s up to you to make those changes. Some of the newest design changes we implemented made Sell Media responsive (work on mobile devices). If you don’t want to have Sell Media work on mobile, then you can easily reference the old code and revert to an old version of the plugin.
Regarding “lost of sales” (assuming you mean “lost sales”), you likely didn’t follow the configuration instructions correctly:
http://graphpaperpress.com/docs/sell-media/
And lastly, the title of this review is totally unrelated to your actual review, which is a bit disingenuous. If you had looked at the actual code, you would have noticed that it adheres to WordPress coding standards and modern PHP conventions.
