ETFE Flexible Solar Panels

I'm getting ready to go to the Miami boatshow and want to educated myself on these newer ETFE coated flexible solar panels. Can anyone advise me if they are any better than the older flexible? I really don't want to mount large, heavy glass framed solar on the hardtop...would rather use flexible. However, some have said flexible panels are a waste and deteriorate fast, don;t meet output specs.
http://www.lensunsolar.com/blog/new-upgraded-flexible-solar-panel-they-are-made-of-etfe-and-new-technology-for-lensun-solar/
http://www.lensunsolar.com/blog/new-upgraded-flexible-solar-panel-they-are-made-of-etfe-and-new-technology-for-lensun-solar/
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Second system 1890W 3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.
5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
Glass can last much longer--Until you drop a wrench or somebody throws a rock--They are made from tempered glass and will go "spiderweb" instantly--And shortly there after will only be good for modern art.
Also remember that solar electric panels do not operate very well if shaded--Even a shadow of a line across the panel, or other projection (minor shading will usually zero out the current from any partial shading--at the very least--until the shadow goes away).
-Bill