Strongly recommended as worth the price, especially when it's on sale. Don't expect this to be equivalent of a $50 game and you'll quite enjoy it. The video gives an excellent example of what gameplay will be like, including cutscenes. It does end suddenly and there is/was some difficulty in making the sequel, however the developer IS working on it after all so there's hope!
The main character is snarky and sarcastic and a catgirl. If you didn't really get that from the trailer or the name of the game itself, then you don't get much sympathy from me.
The levels are HUGE, the animations are smooth, the plot is mildly interesting and a little bit of a page-turner (which is why it sucks that it suddenly cuts off and we've been without the next part of the story for so long.)
If you like side-scrolling platformers and can stand (or even like) the protagonist, this game is worth picking up.