After playing From Dust, I must say that I really enjoyed the game. The gameplay was unique and quite refreshing. It was fun trying to figure out the best way to use the elements, to sculpt the environment, and protect the people for their impending doom. The game is also quite uniquely styled, and a pleasure to admire. For the price, I definitely recommend picking it up.
Where I think the developers missed an opportunity is within the community. The sandbox style of the game begs for user content. It would have been really great if there were a way to develop custom scenarios that were sharable amongst friends or the Steam Community. I suppose we can always hope for an addon or this ability in From Dust 2 should it ever come to pass.