There are a few recommended materials for those cushions. If you wish to know about those types, check reading below. Below are a few reviews about those cushions kinds.
Considering that the U contour will only use the each side of this wall, then there could large space that’s wasted. Hence, the vacant spaces in the middle of the space can be used to get extra dining table. You may use island there. It will be good for cooking space or whenever you add additional seats, it can be utilized for dining table and food prep.