Thank you so much for your feedback Abstract!
I like the idea of having different cursors for interacting with cats and customers, I will consider it something to add. The cats do have different behaviors in the cafe but I think it is not clear enough to notice unless you know what to look for. Most of their behavior differences are related to how they interact with other cats and customers. For example the cats that sprint across the cafe randomly are supposed to be the shy cats running away from other cats. I just need to do a better job defining behavior and making it more obvious. Their personality types names don't appear in the cafe, that would be a good thing to add.
I will look at tweaking to balance of upgrades so they feel more rewarding and impactful. It is supposed to be a big part of the game loop so I'll for sure tweak it.