I did an 8 AM breakfast and found that it was the least helpful of the park breakfasts to get in early for. when you are done you are in the park yes but still behind a rope line with a massive crowd between you and the way to get to Tower of Terror and Areosmith. The location is not the best to give you a leg up on getting to the attractions before those who just show up early to go through the turnstiles.
Also i thought the food was just so so when i went. If you have little kids the atmosphere is ok but if they are older you might not like it so much either.