I'll say it was OK, not transcending, not bad but just above average.
Yes, the character are well rounded, yes it was all in all an interesting approach in the stereotypical princess story, but no, it was not a breakthrough, not something I would care that much. Dare I say The Lion King (AKA The 'Merican Kimba) was also largely overrated for having sorta a few dark/political themes shovel into a kid's movie.
Here I liked more the The Hunchback of Notre-Dame back at the day (and nowadays in fact), Pocahontas did a better job in the Musical department (Though "Let it Go" is simply amazing as I was humming the bloody tune for a month). Disney animation per-se hasn't been good since ... decades until this once, hence the boost that it got.
I say (and I WILL be called for this) that Sherk II is probably one of the best animated series of the last few years, it is ... far more clever than this, although it's sequels were mostly crap (though I was quite fond of Puss in Boots' movie) it showed an intelligent approach to parody (something that was half asset at the time but the movie did it pretty well, like having Far Far Away as Beverly Hill's style being itself a parody of the decadent state of the high class by contrasting it into a real world scenario*). Now it should be said that it's story is not complex nor innovative but it was refreshing, it was fun and it was far, FAR, FAR more memorable than this. Spanish dub was glorious to say the least, which I helped the film to have more impact in Spanish-speaking countries, hence why is more memorable in such places.
*(it has some really stupid jokes, but they are just overwhelmingly small compared to the bigger picture)
As a more serious tone movie ... I'll say Pixar's Ratatouille was better (though I tent to prefer that movie to say Cars, which is really overrated and ... overdone, Owen Wilson and all that), Puss in Boots is at the same level, which was average but both generated the same amount personal interest.
Maybe is a generation thing, having slightly younger people not to experience mid 90's to mid 00's films of the sort to have a contrast point. I'm highly biased and I just ... didn't like Lion King, or much of Disney until pixar, so yep, I'm pretty much biased against it or rather it doesn't "click" on me as say Puss in Boots or Monster's Inc. (BTW I though Wall-E was really stupid, it was boring as well, some attempt from Pixar to make a animated western Chibi thing yet it got accolades from everywhere so
)
Maybe not masterpiece but it appealed to me greatly having grew up with Toy Story.)
