We did the character breakfast in January 2012. We were actually the first family there, so they gave us a little card that said we were the first family of the day. That was kind of cool!
The characters were Jake, Oso, June, and Handy Manny. I only knew who Handy Manny was, but our son knew everyone.
The food was pretty good, but of course it was fresh because we were one of the first families there. The characters spent plenty of time with us, and they had a couple of girls (women, really) that led some dancing and other stuff at the front of the restaurant. The kids seemed to have a good time with it (our son was too embarrassed to get up there).
We don't really have any complaints, but I don't think we'll be doing that breakfast again (mostly because our son does not watch any of those shows anymore).