I know they won't take tanks older than a certin date. I un-knowingly exchanged a new tank for one that was approaching the expiration date and I got stuck with it at the next attempt to exchange. Had to buy a new one.

I think gas refill could be a problem for a real cruiser, though everyone who cooks with gas already deals with it (though usage is probably less). For vacation cruisers like me those fiberglass tanks would probably be the best choice, with a few one pound bottles as back up.

I do like the idea of no fuel separation or dirt issues, though it would be better to see this fuel option from one of the established engine makers.