After completing literally everything this game has to offer, Hard difficulty,Hardcore Mode, Über Hardcore Mode, Time Attack, Score Attack and all Achievements I can safely say that this is a really fun platformer.
This is a stand-alone expansion / DLC that adds 7 levels and does not require the base game to be able to play.
I would really recommend starting off on hard difficulty, normal mode just makes the levels so much easier that it's barely a challenge. Completing hard difficulty took me around 3-4 hours the first time playing, so the game is fairly short if you don't give all the other game modes a try (took me around 15~ hours to complete the game 100%)
The controls are solid for this game, I didn't mess up once because of bad controls or anything like that, Giana moved where I wanted her to, worth noting that I used an Xbox 360 controller to play through the game, can't say how the keyboard controls are as I didn't try them.
Now the soundtrack for this game, and the base game is fantastic. The Cute / Punk version of every song blends together perfectly when you switch between the two different versions of Giana.
This is NOT an easy game, you're gonna have to restart over and over again, be prepared.