I would say DL’s Fantasyland fits perfectly to us because that’s what DL’s Fsntasyland IS. We’ve always known it like this (except for those of us who also knew the original Medieval Tournament version), and so it feels comfortable and wonderful.
If you just think of the Mt. Prometheus lagoon main body of TDS, Fantasy Springs is a jarring contrast… BUT, the park is also the hyper-cartoony Mermaid Lagoon and Mysterious Isand’s steampunk hideaway. FS definitely pushes at the boundaries of what DisneySea, as a whole, is. But it is playing by the park’s theme-rules, and I have a feeling the new addition will thrive and soon feel like it’s always been there.
Or not.
But I like what I’m seeing (truth be told, I’d gladly have omitted Tangled and replaced it with Moana).