Shu's got some neat things going for it. It has pleasant music to accompany you on your journey, which does a great job setting the mood when you're playing around with your new abilities in each world, and conversely ramps up the tension nicely whenever The Storm manages to track you down.
There are also several different unique powers you gain access to throughout the game, each of which changes how you interact with the world and progress through the levels. Unfortunately, after you've finished progressing through any given world, you lose access to these powers, as the villagers who granted them are rescued and removed from the player. It's a neat story concept, but it means you don't get to spend all that much time getting comfortable with each of your new abilities in the game's very short run. Each time you hit a new world, you're returned to your standard jump and float ability until you find more stranded villagers who give you temporary access to new abilities. If the levels were longer, this might've been alright, but you can be done with each world and its collection of levels in thirty minutes easily, meaning you don't really have that much time to play around with them.
If you think that sounds short, you're right. There are only five worlds in the game, and I wouldn't be surprised if my total playtime clocked under three hours. There are additional challenges the game offers, such as time attack modes and collectibles to hunt down, but if you're only interested in playing through the story, you'll find yourself with very little game. It's a fun ride, but definitely not a title I'd recommend picking up at full price.