Can you paint or stain composite decking if you want? What products can you use to do this? Are there any health risks, associated with the "plastic-resin components? Is it hot-for barefeet? Does it melt and emit dangerous fumes or liquid if you have a fire? Any other cons environmentaly or physically? I really like the fact that it is maintainence free and may last forever, and it recycles and saves trees BUT....I worry it may be too NEW to have weathered all the tests of time.