Dust: An Elysian Tail is a game that carries on for a bit too long for what it is. Yes, the combat's perfectly fine, the voice acting is average, the story... so-and-so. But the thing is, it's not a very deep game in any of those aspects. And since it's not very deep, that means it eventually - especially if you try to get everything - turn rather repetitive.
If the game had less cannon fodder, more enemies that needed tactics, and cut out a fair few areas that didn't really have much reason to be there, then I'd really, really have liked it. And I wanted to like it too, especially because of the beatiful scenery and designs. But apart from said design, there's nothing to make this game stand out for anyone who's played a fair share of similar games. At best, you might consider it a way to shorten the waiting time for Kingdom Hearts 3.