Well, no surprise, but this is a fantastic physics puzzler. I just played the first 15 levels and it looks great, has very cute characters and animations, bright pleasant backgrounds, and best of all, extremely creative and varied puzzle elements as FDG is already well known for. And even in the first 15 levels it can at times be a little hard! (I spent 10 minutes trying and failing to clear level 5).
I haven't played Doodle Cover, but the game that this so far kind of reminds me of is iBlast Moki. Reason being that you have to maneuver these little round characters to a goal. But since you have to manipulate objects it has a lot of the characteristics of a game like Saving Private Sheep or Tumbledrop.
It's safe to say that if you like cute physics puzzlers then you will find this well worth the 99 cents. For me it is already one of the best simply because I love the puzzle mechanics so much. It's a matter of personal taste which of these games you like the best, but this one has something for everyone, even those who're only into Angry Birds or Cut the Rope.