I bought and used a round bale hay net last winter. Can't remember if mine was an eco net or not. It is fairly easy to put on, even alone. I have a tractor and grapple but try to be gentle. In my opinion, it is not for young horses who need a lot of food as they are growing, nor for harder keepers or horses who need to eat a lot. It did work very well for a couple older geldings whose intake definitely needs to be controlled, and I did put it inside a metal feeder to save wear and tear on the net.
The trailer size nets worked well for travel and short term, but aren't very durable at all with how their top closes.
Whatever is going on in your mind is what you are attracting!!!