We've tried both breakfast and dinner. My entire family enjoyed breakfast better. The food at breakfast is pretty good. The food at dinner on the other hand, well, not so much. It tasted like a bunch of frozen meal food heated up. We had an early reservation (5:10) just after it opened for dinner and the food was still not what I would consider hot. It was okay; it just lacked something. My girls (3 & 7) enjoyed breakfast better too. I think it's because there was a lot of options that appealed to them (Mickey waffles, yogurt, fruit, bacon, etc.). Then how fun is it to top off your meal w/ a donut or a brownie? I would NEVER let my kids eat a brownie for breakfast so they think it's fun to get to do that at Disney. The atmosphere & character interaction at breakfast and dinner were about the same. I think my girls also enjoyed the breakfast better because they had fun interacting w/ the characters and swinging their napkins w/ Mickey's party (a little fun thing they do during the meal) and getting all excited just before we headed off to a park; it was a fun way to start their day. Then they carried the excitement all throughout the day. We've tried Chef Mickey's for breakfast three times. We tried it for the first time for dinner this past summer. I thought it would be a great way to kick off our trip on the first day. Since my girls loved it so much for breakfast, I thought it would be perfect for the first night. My girls still enjoyed it and didn't complain a bit. I was really disappointed, though. Very let down to say the least. We also had breakfast at CM that same trip. When asked if they preferred dinner or breakfast, they both said breakfast w/out hesitation. So for us, breakfast is a keeper but we won't be doing dinner again at CM.