My plugin is a full solution for using JW Player into WordPress, it gives you simple tools for using all the options available.
The point is that what you can do with it, depends from your jwplayer license. For example, the plugin supports ads video prerolls but it is just for Business or Enterprise licenses.
Weeks ago, jwplayer changed his Starter solution from free to 5$ per month; it was a bad new for everybody but what can we do? This is what they offer now.
I’m sorry for this, what I ca say is that JW Player still be the best solution, even if now a little more expensive!