Unlike aluminium or PVC, wood is a natural material, and it gives both advantages and disadvantages.
For example will wood grain or knots be visible through the surface treatment.
Some will regard this as a charm, while others might prefer a completely uniform surface.
Therefore, it is important to be aware of the fact, that wood will continue to change exposed to moisture, handling etc.
Read more about how surface-treated wood behaves:
Expected outcome of industrial surface treatment of timber elements