If you're just needing a solution to protect a keyboard in your backpack, you can't really go wrong with getting this. That being said, I used it for a CSTM65 and it barely fit. It didn't bother me, but if you're looking for something a bit more encapsulating, I would probably look elsewhere.
Does exactly what it's supposed to. Looks nice and clean and feels really good to carry. Protects my keyboard and looks nice as a storage spot for it when I'm not using it. good quality