Title is a lie, this chapter is pretty good. Pretty hilariously difficult at points. And I LOVED the raining saws in level 7. It's made of pure Super Meat Feeling.
Also, you are the first person to convince me that not all 'hard' chapters in SMW will be difficult just for the sake of difficulty. Good job!
I have just one thing to add:
Move level 1 down on the list. Make it like 5-8, somewhere around there.