We like it. During our first family trip to WDW, my oldest was afraid of dark rides. She started crying during Pooh and refused to get on any other dark rides after that. During the second day of our trip, we went to EPCOT, thinking this would be a long trip if she won't do indoor rides. We talked her into trying Nemo and she LOVED it and we rode it 4x in a row. It really changed our trip so it will always have a soft spot in my heart.
It's not an amazing ride, but it's cute. I enjoy it and always ride it at least once every trip. The only ride that I can say I "hate" (I have never ridden Stitch) though is Figment. That one is awful!