I love that Launchpad had an equally grand adventure all on his own. More importantly, though, I'm so happy we got to see more of Donald Duck getting some focus & going on a heroic tantrum. He wasn't prevalent in the original show, so he's the one I'm most excited to see more of.
As for Gladstone, I'm glad to see him, too. Even though I'm usually fine with voice actors sharing a role, however, something about him sounding like a slightly smarmier Mr. Peanutbutter was something I couldn't get over. I liked the voice & it fits, but it was something I couldn't get over, & this is coming from a guy that binged Bob's Burgers & Archer in the same day once.