Well, I like using it mostly as a means to bait out actions and figure out patterns. I DDP towards the opponent just outside of their attack range then back then back in if they throw something out I could punish. I can choose to stay out and keep neutral going. I sometimes cross up with it, to see what they do (attack, shield, roll) and then do whatever after. I mix this along with DD'ing, Run Shields, Walking, Running, and the Spins so I can constantly be mixing up. Spacing and Mix Ups are so important if you choose to go aggressive.
To help out with spacing it, figure out every character's general attack range. Figure out what your opponent likes to do when you go in and change it every time to benefit yourself.