We enjoyed the Lilo and Stitch breakfast at the Paradise Pier hotel, but I would advise against the one at Goofy's Kitchen!!
Last fall, we went there to have our last little bit of pixie dust before driving home, and there were only a few characters. At that, I had to find/ask the manager to make sure that Alice (the only girl 'face' character there) would come to our table...and we still had a wait of 20 minutes or more. We were there about 2 hours, and we spent a good bit of that time waiting for characters to come (and they didn't).
It wasn't just me, either. A mom from school took her family a few months later, and the very same thing happened to them (I'd warned her in advance too...).
I called Guest Services about it, was told that I should have complained right then and there (but I didnt' because we were with friends and I didn't want to make a fuss, even though I felt like an idiot for recommending it to them). I was THEN told that if I wanted a good character breakfast experience, we should have gone to the Plaza Inn!! I was floored by that.
So...my advice? Go see Lilo and Stitch at the Paradise Pier.