Definitely fun for kids of all ages and one of the few Disney movies I can happily watch again and again.
Rapunzel retold definitely had some of the most adorbs animal support.
Now why is this film great? First, each character feels like they have their own individual personality and meshes well with the other personalities. EVEN THE HORSE is a likeable character, a stupid horse that in most disney films would just be a couple of throwaway jokes--he's got some genuine laughs and even a bit of a slight character arc. The romance is believable and given time to develop and grow, the villain is a good villain and very imposing/threatening, the plot is clever in incorporating a reason for Rapunzel to be in the tower as well as tying in the end scenes with that same purpose. Most of the songs are fine, and there's one or two that are genuinely lovely and great plot/character development as well. It's just a solid, well crafted film.
I only have two nitpicks for the film: The villain brothers weren't really necessary (probably added to give the villain side a more "physical" threat?) and the knife didn't have any blood. But that's nitpicking for the sake of nitpicking, this was such a great film and started Disney's revival for good reason.