I recently bought this game on a half-price sale. I'd had my eye on it since it first crossed my sight some time. It looked interesting, like a 'Metroidvania' type platformer, but I hadn't had the money to throw at it before. Now that I did, I don't really regret buying it. The design of the game is rather charming, but it has some flaws to it.
First, the controls are a little unresponsive, making the first early boss ("Crystal Boss") a bit of a pain to time just right. Later on this dovetailed into some issues with platforming since the jump was a little "floaty" as it felt. However, the ability to just start a room over again if you die . . . infinitely, so it seems, makes it a little less annoying.
Secondly, there seems to be relatively few invincibility frames for you, so an enemy who spawns on top of you can easily kill you before you can kill it due to slow scythe swings. This becomes frustrating right about after the first boss.
Third, the voiceover in the beginning . . . there's something about the way it says some of the words, and how the sentences flow which feel off. It is minor, but I bring it up since it is the first thing which you hear and can grate a bit.
Lastly, there seems to be a few graphical glitches which occur now and then which necessitate reloading the game. It's another minor annoyance to stack onto the others.
I do recommend the game, especially with some of the issues with the release worked out. It's not a truly amazing game, but it is at least atmospheric.