Every cat is something different, I had 3 and every one of them was different personality-wise.
Generally cleanliness is not the issue, although some more furry cat may end up throwing up once or twice a week, simply because all the fur that gets stuck in the stomach. Also, yeah, if you will get furry cat it will leave fur everywhere, it's not terrible really, because generally he will sleep in one or two spots he likes and if you put some rag there it's cool.
Cat is a good idea, because it's pretty low maintenance. I do think something with shorter fur would be better generally.