I would even say that this game manages to hit the 3 points in which I avoid on a Metroidvania:

1. Rogue-like. I really dislike rogue-like, no special reason, just a personal preference

2. Lack of a plot. I appreciate the feeling of exploring a world the feels alive, even if it's a very simple one. Going through levels for the sake of going through them, it's not much of a fun experience to me.

3. Huge resemblance to the original Metroid. If I wanted to play Metroid... I would be playing Metroid.

Also... no Linux version? Really? That excludes me entirely from this game.