Bounced off this pretty hard, abandoning it as Act 4 was about to begin. The biggest problem is the rpg sections take up a huge portion of the game-time despite being largely insipid. I'm given no reason to care about this quest beyond saving the world being a generically good thing to do, and no reason to care about these characters who are at best shallow and one-note (he's the happy one, she's the grumpy one, etc) and at worst have a habit of all blending together and sounding the same. I spent the majority of the rpg sections just bored.

The platforming and puzzle-solving sections are largely fine but rarely achieve much more than that, with the mechanics I saw varying from decent but underdeveloped, to pretty awkward. That said, I strongly disliked the song portions, which depending on which approach the game takes either lack a sense of rhythm or lack a sense of my actions actually mattering at all. Also encountered few small bugs, and the controls for the singing did not feel very smooth requiring you to be very specific with you control-stick movements.

Honestly talking myself down on this the more and more I type.