Quote from brocklanders:
They each have their pluses and minuses. I use an automated strategy in a low volatility environment or when I'm not able to be at the screen. I still stick with manual trading during high volatility periods or if the strategy needs constant tweaking. It is extremely difficult to program an automated strategy to meet all of these needs and compete with all of the algorithms currently operating.
Don't fool yourself into thinking automated is any less challenging or less stress than manual. In many cases it is much more due to the enormous amount of testing and work involved outside of market hours to just create something halfway decent.
