Good price, good enough color match, great size... what's not to like!
There are a couple negatives that you need to consider when you mount it: 1. use come sort of doublers to spread the load over a larger area at the points of attachment or it will stress crack and be ruined fairly quickly by the rough ride and any wind effects. I would consider thin wall conduit or better yet square tubing all the way around the edge to distribute the stress. That is the way it was engineered to handle the strain, by contact all the way around and 2. Wind loading can be fierce. You can't depend on it always being in perfect neutral profille to the wind and it has quite a large sail area. Those doublers to spread the stress need to be on both sides i.e. top and bottom as the wind will try to raise and lower it at random
Avoid letting it flutter at all from wind effects or it may develop cracks after a few jillion cycles of wind induced flutter.
If you support it sufficiently it should make you a very good sun shade and rain cover.
To gild the lily you could put snap and or twist fasteners on the edges to take clear plastic "dodgers" that would give you a semi-enclosed operating position for rainy days and as cold wind protection. I refer to the kind of plastic used to make flexible windows for Jeep doors, boat canvas, and such. I have such for my dune buggy and they are fast and easy off and on and keep out a lot of rain and cold winter when I am crazy enough to run a dune buggy in the snow.
Pat