Heres the thing about Days...
The Story was a good story but it was not a good story to be inserted into the series. As it's own game, Great, as a KH Game, Bad.
But... CODED SPOLIERS
Xion is somehow one of the people needed of saving along with TVA, Roxas, Namine & Axel. So she might get a reason to exist beyond and possibly before Days. So,
With future games our opinion on the Game might change.
It's no surprise it got Best Graphics for DS. Full 3D Worlds and Characters with the best Cutscene Graphics ever seen on DS, though there was few of them, but we can blame that on the memory those little Cards hold.
Finish Strong?
I guess it means that, no matter how boring it got through the first 300 Days, you, for no good reason, kept playing it.
Don't get me wrong, I liked Days, it's just had a bad impact on KH as a whole.