It's got a bit of a learning curve before it does things you want it too, but it is powerful. It's pretty much the same same thing Larian used to make the game. So if you want to make an expansion of the original source hunter adventures it's relatively easy. There are a few things you can't do as far as I'm aware, importing animations and icons are a couple of things. However I think they are being addressed. Larian is apparently working on updating their editor for they are planning to use it in later projects.