Solid.
I enjoyed 'Onward'. It sets up a cool world filled with intrigue, whilst also having a heartwarming story and good lead voice actors. It doesn't, at least for me, hit every hearty note it attempts but you definitely end up caring for the main two characters.
Tom Holland (Ian) and Chris Pratt (Barley) are a smart pairing, they work together nicely. I don't love those around the Lightfoot brothers, the stuff with Laurel and Corey isn't all that interesting even if Julia Louis-Dreyfus and Octavia Spencer are fine choices as their voices.
Overall, a good watch.