Hm... I got to the end of Part I and I'm honestly enjoying the game. It's buggy, the UI is bad, and many puzzles don't make sense, but somehow I found enjoyment in some of the less scatological humor and I find the art style clearer than in many more polished games. I wish this game had gotten the release we all wanted, and I wouldn't recommend anyone to buy this, but I don't think it's a total loss and as long as it keeps the current pacing, I'll continue playing it.
I found it important for my enjoyment to pick up the walkthrough. I'm solving most of the puzzles on my own, but a few rely on unexplained features and nonsensical logic, and I don't think I'd find the game as entertaining if I had to work those out on my own.