"Failed pilot?!?" If you have the money and the time, I can GUARANTEE you will get your wings. And no matter how much money or time you have, you can be sure that out of a class of 20, only 5 will become controllers.....
But I digress. You wanted the plus and minus. Although you've heard this before, it's worth repeating: If you truly and fully enjoy air traffic control, you'll never work a single day of your life.
Best of luck!