We've only eaten there once, but we enjoyed it. It's not my favorite QS meal, but it's not bad (and the fact that there are plenty of seats and air conditioning made it a godsend on a sweltering September afternoon). My husband is not an adventurous eater, so he prefers places like Cosmic Ray's where he can get a basic burger. I think Sonny Eclipse is fun, and he's a good distraction for kids if they finish eating before the adults.
The cast members were absolutely fantastic. My husband had taken our kids to find a table while I got the food, and while I was getting ketchup, I accidentally knocked my chicken sandwich on the floor. As I was trying to clean up the mess, a CM came over and asked what I'd had, told me not to worry about cleaning it up, and put in a rush order for a new sandwich.