Learning piano is only as hard as you make it out to be, and as easy as you think. With a good piano teacher, you only need a few months to be good at it, but a bit longer to be truly phenomenal. With practice, passion and determination, you can become the Ludwig van Beethoven of your day.
It just depends how you spend your time on it because if you spend a lot of time practicing than it'll come fairly easy but if you don't spend enough time it'll be hard. Just so you know of you can piano you can play anything.