I'll be honest; I was prepared to hate this movie. I disapprove of Mattel's decision to abandon fantasy films, fire Kelly Sheridan and put so much attention on Barbie's "acting career". But I gave it a chance, and I was pleasantly surprised.
Yes, it's a lot more "fashion-orientated" than earlier movies, but the story was strong and it was a lot of fun. I liked the characters, particularly Marie-Alecia, Delphine and Aunt Millicent. Ken also provides some comic relief with his journey to find Barbie.
I'd say it's worth giving a shot, at least. It was certainly better than Mermaid Tale.