Just noticed this resource had almost no review and I in my honest opinion, don't think its fair from my side to not review a plugin that has been useful for my server and fun to use for a few months!
The plugin turns your empty and lifeless towns into a full living place with merchant NPCs, all trading resources provided by your players. This is awesome for Plot servers or even a Towny setup where players can create towns and build stores.
This breaks the old and boring "chest based" shops plugins and implements a way more fun and fancy system with custom NPCs and GUIs for your players to customize and sell/buy items between themselves.
I highly recommend this plugin and also DtlTraders if you're looking for a unique way to let your players buy/sell items (this) and a server system shop (DtlTraders).