World 4 was pretty amazing (especially compared to World 3) and World 5 has been pretty fun as well. I really agree with GamecubeMan in that this game just takes a little while to warm up to. Comparing it to the other Paper Mario games, I really enjoy its creativity and the sticker mechanic.
I think a lot like Super Paper Mario or Super Mario Sunshine, I love how different it is compared to any other game in the series and its a shame we might not see this style again

