Thanks for the kind words!
Overall I'm pretty happy with what we got into the game. Of course there is always stuff that ends up on the board as "nice to have", but you know a lot of those are just never even gonna get picked up unless you finish what you really want in the game.
In a way the Daily Challenges were something that was on our Nice to have list. The game would have worked fine without it, but since we had some time left at the end of the project we managed to get Daily Challenges in the game as well. So we view it more as an extra to the game, whereas you could also see it as leaderboards that did not get implemented, since we do have the analytics for them (we know who finishes a daily challenge). We just didn't have time to implement the UI of the leaderboards.