For a movie clearly made to pander to people like me, grown-up Digimon fans, it sure spent a long time on a surprisingly depressing new character. Very dark stuff, I was honestly a little surprised.
The art was passable. I liked the song.
I still enjoyed all of the moments with the OG cast interacting with each other and their Digimon, and I liked it more then Kazuna, so that's something. There's not a ton of action, but that didn't bother me as I really care more about the characters.
If you really like the 02 cast, it's worth watching but be prepared for a kind of intense story from the newcomer.