If you are comfortable with FP at a low level then jump in and give it a try. At a high level the two approaches tend to not look that different. Why, because

If you are comfortable with FP at a low level then jump in and give it a try. At a high level the two approaches tend to not look that different. Why, because the end goal is the same: clean interfaces to logically organized components. It shouldn't be too surprising that a logical, and consistent interface to a Balanced binary tree or bank account looks very similar once you get past the implementation details.