I liked that Huey, Dewey, and Louie were given their own sort of personalities and more distinct looks. I always bemoaned as a kid how you could leave only one in an episode and he could easily fill the role of the other two and no one would notice besides the sudden lack of a an echo. Admittedly, the pretty much Freudian/Power Trio personality and roles were pretty damn shallow but it was a start.
Furthermore, Daisy, outside of this show, it prone to being depicted as a nagging, whiny, snobbish girl who (especially in some of the Dona Rosa comics) would break up with Donald for any reason, especially for circumstances beyond his control (or more precisely, entirely in the control of someone else who was obviously out to get him), and treat him with nothing short of domestic abuse.
In Quack Pack, she's actually a decent girlfriend to Donald, and has a better design that does not make her look like her wardrobe is hand-me-downs from Minnie Mouse.
Pretty much everything else.
It would have been nice if this was instead tied into the Duck Tales universe with Donald taking back over watching the kids and enjoying naval retirement (and not NEEDING to work with Uncle Scrooge for more than the sheer adventure), maybe the odd cameo with Uncle Scrooge and a few other familiar faces.
But, such is life.