I love this system; it has a great deal of flexibility and customization. For a game master that wants to create their own worlds it really is a wonderful system to work in. That being said it takes a great deal of work to take the open rules and use them to frame in your own world and a context for characters to exist in. Character creation rules for your games should be clearly defined. BESM is a point-buy creation system that resolves conflicts with an open ended 2d6 roll.