I have had made small panels
made from my templates. Not big areas, about 1m2
I have more extensive experience of the PVC based strip plank alternatives , especially Flexiteak
MarineDeck , It has a nice feel underfoot, but in my experience is not as robust as the PVC product, It does seem to stay cooler then Flexiteak, ( which gets hot enough to burn the soles of your feet !) but again mine was a small area.
Laying the mat was easy.
I found flexiteak cheaper as I could buy the material directly. Mistakes
in the template in Marinedeck are terminal. I found I could lay flexiteak as fast as I could make good quality templates. !
we cleaned it with ordinary detergents
We did find that over time it got dirt ingrained into the surface and gradually darkened.