I have to be honest: I thought the food at our character breakfast in 'Ohana a few years back was some of the worst we ever had at Disneyworld. Eggs were cold, bacon and sausage weren't good, the waffles were stale. Our DD enjoyed the characters, but we thought the food was horrendous.
Seriously, if you're going to the character breakfast, don't go with the expectation of great breakfast food and you can avoid disappointment. If you want Tonga Toast, I really would go on over to Kona Cafe. That, and just about everything else, is really good there, IMO. No characters there, but then we've kind of had our fill of character meals at this point.