Yeah, we have the hidden fastening system as well, and the edge trim. ( The material we used is hollow core, so the trim is a given.) Our Fascia planks are just screwed to the sub frame however, so we’ll have to see what happens with those in winter.
I also specified 12″ centers on our decks, which put up the price but the things are rock solid – no flex at all. We have 2×10’s and no more than 8′ unsupported. Of course, our decks are simple rectangles, which makes the framing simple. The only thing is how it holds up under fairly close contact with the earth … the problem with of having a low deck.

I’ve notices on ours that the plastic actually absorbs water, and until it bakes out under prolonged sun exposure can still be slippery for some hours depending on the type of shoes. My slippers definitely slip when on the deck if it rained in the last 6 hours!.