They do, and then they don't. The best tool, and remember that definition is highly subjective and situation dependant, doesn't help you if you a) have no idea

They do, and then they don't. The best tool, and remember that definition is highly subjective and situation dependant, doesn't help you if you a) have no idea how to use it properly and b) don't have a framework to use it in. Once tool quality passes a certain threshold, it the user that matters.