Does anyone have any experience with PowerFilm's foldable solar chargers ?

These look like the cream of the crop of the portable solar world in terms of weight and output. For example, the PowerFilm F15-1200 is rated at 20 watts at 1.2 amps and weighs under a pound. That is pretty amazing. This is certainly enough to charge a fairly high capacity sealed lead acid (SLA) battery, which many of us use for backup AC/DC power.

The downside is the cost of these things. They seem to have a single US civilian supplier , who I've never heard of. I can't find any substantive reviews online, and I'd to know more about their durability and performance before shelling out the $$ for one of these. (I currently have a much lower performing older-fashioned folding panel which needs replacing.)

Any thoughts or info would be very appreciated!

Fitz