Positive is easy to store Lightweight, flexible and stowable in a handy bag. Man kan the solar module readily me rubber drops provisionally fix eg on the foredeck and a small cruiser. The charging power corresponds to the specification for a first test, 3A is easily reached in direct sunlight. That's enough to keep a small compressor cooler on permanently without losing much battery capacity. The price line ratio is mediocre at the regular price, the chili special offer is good. If the system survives the upcoming sea trip, 4 stars are appropriate. 5 stars, if the cable had a strain relief on the bag. No idea what happens if someone stumbles over it, If it breaks out, the module is likely to be irreparably damaged.
very light and handy good efficiency (64 W already measured, max 70W seem so realistic) even in overcast skies even use (10-25W) - only with PWM charge controller to acquire (stupid, if you already have MPP charge controller) - quite expensive (as a chili special it was OK)