We were on the Fantasy August 15-22 & the Disney Jr. character breakfast was available. It was listed on the navigator the first day with the Princess Gathering & Anna & Elsa. We didn't make it on the ship until almost 2 & I had no problems getting a ticket. Our assigned time for the breakfast was 9 a.m. on the second day at sea. We saw Mickey, Jake, Sofia, & Doc McStuffins. For us it was a good character meal experience. All 4 made the rounds before our food was served (this is a big deal to us because our middle child has some oral motor difficulties due to cerebal palsy & is an extremely messy eater. We haven't done a character meal in almost 2 years because it's just too stressful with the distractions from eating & then trying to clean up the mess each time a character comes to the table.) The characters weren't too rushed & the kids really loved meeting them. Even the 9 year old, who in real life is mostly over these characters. The 6 year old was over the moon because he's been obsessed with Doc McStuffins this summer. The breakfast was okay. It wasn't as good as one we had at Royal Court one morning, but it was better than the one on disembarkation morning.
If your kids like these characters, I would definitely recommend it. The characters were available at other times, but they always seemed inconvenient due to other plans we had.
