I'll wishlist, not sure if I will buy on release depending on when it's dropped. I don't think there is much more I can say compared to the last demo I played. There are many things that are good but the times when nothing is happening due to the player and the AI not having a good move slows the game down when it happens. The game has a good chunk of polish and there is nothing more I can say for what you can improve outside the slowdowns when nobody can do anything when matches go on for a certain amount of turns.
The only thing you could consider is that people like the Balatro OST creator are really cheap on Fivver. Balatro's OST apparently only cost the dev less than 50 dollars for the whole OST until they set up music revenue sharing which wasn't required or asked of before Balatro's release. So if you want to you could pay for that instead of having the custom made music and/or didn't want to make any more music yourself. I think most of the game is all one/two tracks(?) from what I noticed, which is why I'm stating that.