I have had this Rainfly for a year now have used it dozens of times. Awesome buy for the price. It has kept me dry in my hammock during several heavy rainstorms.
Extra bonus is it is very lightweight and packs up small. Perfect for backpacking trips.
Stop thinking about it and just buy!
My son and I both have this tarp we have used over our hammocks. This is a great little tarp at a very good price but it is a little small for use over a hammock in any kind of windy rain. You have to use it diagonally (at least we do) and you don’t have great coverage at the ends in the wind. Better choice is Noah’s Tarp 12 which is considerably larger (and heavier and more $$)