We went to Disney this past Sept/Oct for a week and we ate dinner at both. We did Chef Mickey's on our first night there and I would call the food o.k., but the characters were great, dd (6) had a blast and it was a perfect start to our first Disney trip. We waited a bit to get seated, but not too long and our server was so nice.
We actually plan to go back to both on our next trip, especially since we will not be doing CRT next trip, at least we will be able to see Cinderella.