I have a couple Martins with micarta finger boards.
They look alot like an ebony finger board from a few feet a way.
I think they are actually a little easier on your fingers than wood and they look very appealing to the eye. I've only had mine for a couple of years and I have
a lot of guitars so I can't tell you how they wear. But there is no wear at all on either of mine and I do a lot of string bending. They are very smooth and play as good or better "perhaps be on a Martin" that ebony or rosewood or maple.