It’s absolutely gorgeous and very very expensive. Unlike the other comment I absolutely can tell the difference between synthetic and natural woods and in general while I don’t have a blanket issue with man-made materials, I do have an issue with ersatz anything, almost to the degree of having an allergy. For that reason I was boxed into real woods, and from a sustainability (and toxicity) and performance perspective, I didn’t find a ton of options beyond black locust or thermally modified or acetylated woods. Accoya was everything I wanted except cheap, and it is clearly real wood, which, sadly, seems luxurious today.

Just installed it so can’t speak to longevity but encouraged by the 50 year warranty against structural issues caused by fungal decay or rot, or against swell or shrinkage > 2.5%.