Loooks good for portable use as it rools up. I use a fold up for my camper at 100 watts and it does a good job. With 300 watts of amorphous panel should be enough for any size camper.
Today I got in another shipment of solar panels for my next project, maybe this Fall/Winter. They are 320W mono panels. Click the link and scroll down to download the complete specification sheet. What I like is the 19% efficiency.
https://www.solaris-shop.com/canadian-solar-kupower-cs3k-320ms-320w-mono-solar-panel/