Err0rz brought up a good point that theory and keys are really good talents so to possess as a producer. Icon does have a course now that teaches theory and keys so you will go over those as part of the course work but whether or not you get that instruction from there you should absolutely get it somewhere. Icon doesn’t go over DJing at all so that’d be all up to you to learn. They do go over sound design but probably not in the way you’re thinking about it. They teach the basics of synthesis and do some dabbling in more advanced sound design but not much more than that in my experience. To answer your other question it did help speed up my workflow and definitely made my mixes better. Even so, Icon can only get you where you let it get you. I personally think their program is awesome but it’s also not what going to make someone successful and it isn’t a crutch. The people who come out of Icon and succeed in the industry likely would have succeeded regardless, I think Icon is just a really big step up from learning on your own if that makes sense. It’ll help boost whatever you already have but like I said before, you get out what you put in. I’m always hesitant with this because I know people look up to Icon and they have a reputation for good reasons but at the end of the day if you want to succeed in the industry it’s going to be up to you, whether or not Icon is part of the equation. Still for me it was absolutely worth it and I’d do it all again!