My DH did it with my DS on Jan 26. He is 16 and ASD, doesn't talk much (but can). The positive is that he LOVES Disney World, so any new experience there is great to him.
There were only 5 kids in the class and the teacher was great. He let my husband do everything with him, and my DH modeled everything, didn't just DO it. So DS did everything himself too, like drawings. He did the Animation Magic program.
If we go back in August, we're hoping to do another one. It was a really positive experience. I expected DS to get anxious and want to go somewhere else but DH said it kept him interested and engaged the entire time.
I would recommend it for sure.