I’m using the Pro version of Dokan and paid for the $199 package.
The Dokan system is clearly one of the best around and I had a lot of trouble implementing it correctly into a high-end theme from ThemeForest.
However every time I submitted a support ticket with the weDevs team, they got back to me with very clear instructions on what to do and how to implement the correct fixes and css changes etc and even logged in to fix some more complicated issues.
I guess for a $199 price you expect great support, but weDevs were a LOT better than many other developers I’ve worked with and I certainly will be using their Dokan plugin for other client work.
A+ / 5 Star rating from my business.