I use the module to display my playlist on my frontpage with the playlist editor, and the plugin to display single videos in my articles. It works fine, and there are many nice skins you can use. The licence includes the next releases of the JW 5 player, which was also important to me.
But most of all, the support is very fast, and very efficient.
I was first a bit disappointed that some features were not available in the free version : be sure to have the advanced version, which can't be freely downloaded. It's a shame, but I didn't have any bad surprise anyway, and I don't regret my purchase.