Finished HarmoKnight on Sunday. So that's one game down.
Talking about this to Bean, Hot Coldman, and Seven Force the other day, and I have to agree with 'em. It's a good game, but it has some flaws. It's also priced too high and should have been about $8-10.
The music gets a lot better past the halfway point, though I really like that every world has an arrangement of the main theme utilizing the instruments that are featured in that world (ex: guitars, flutes, etc). It's the sort of thing I kind of missed from Yoshi's Island, though that was different since each world built on the theme as opposed to arranging it.
I do not like that there appears to be a lag between button presses and the action, so sometimes when you expect to synch will the melody, you really don't and thus you need to press the button before you must execute the action (this is the case with the directional button cues, in particular). Some of the bosses can be a little cheap as a consequence of this. The Pokemon stages were real neat, and honestly, I'd love to have a HarmoKnight-esque game that features a broad array of Nintendo music instead. Just tighten up those controls and cues, and maybe we'll be pretty.
Regardless, I still had fun. And it's been a while since I played the same game as someone and got to gab about it with a few people, so I'm glad I picked it up.