We've been to CP for breakfast several times and never had a bad experience. In fact, it's one of our "must dos" when we visit MK. That being said, it's never been a fast meal, as most character/sit down meals at Disney are not. We've waited past our ADR time a couple of times, but we go in knowing it's NOT a reservation, just as estimated time of seating, if you will. We rarely arrive early as we know that just means we wait longer with kids that just get more restless.

But we love the food and the last time we were there, we probably sat there for over an hour, just enjoying the atmosphere. The characters came around several times, and after 2 times, they no longer stopped at our table but that was fine. We had had our time and were just enjoying sitting back and having a nice meal and watching the characters with the other diners. You kind of have to expect you may miss a character when you leave the table to get your food, but they come back around.
Now, Chef Mickey's I'm afraid of. I love the atmosphere, the characters, even some of the food, but man $90 for breakfast for the 3 of us was a killer!!!

And my DD was only 3 at the time, she only ate cheerios and a banana. We may try it again sometime when our little eaters are bigger eaters, but my wallet really cringes at the price of just average food. I've had equal or better food (breakfast anyway) at Golden Corral or Ryan's for $20!!!
But I guess we pay for Disney, don't we? And we're all SUCKERS cause we'll do it again and again.