I saw this many times during the month on Discord and have been really looking forward to playing it. My only critic is the tutorial needed maybe just a bit more love to explain the actual attacking mechanics, but I was able to work it out pretty quickly which I think speaks to the way it is implemented. As others said I did originally think the boss was quite tanky, but after realising how I could quickly build up the combos, it got a lot easier.
I think the combat has more depth than a lot of games, which is why it isn't quite as intuitive, but that isn't a bad thing. I also think this is original compared to a lot of the other entries i've played so far, which is great and refreshing in a jam.