Demo dashboard for themes that we sell. What is your opinion?

What do you think about having live demo dashboard for themes you sell? Is there a plugin for this that can be recommended?

I was thinking this could be good idea to avoid having customers with bad experience saying “theme is to complicated
to use” after they purchase. This would give customers a chance to test it before purchase.

If Envato would really want to help customers and stay fair to authors they would implement something like this as default feature.

No answer? :disappointed: