Additionally, maintenance of vegetation to keep poultry netting hot is minimal.
I would argue that all depends on location, climate and the size of the area covered... Grass can easily grow an inch a day during good weather, some weeds several inches a day requiring you clear the area every day in some instances, and if that area is large it could amount to a significant amount of work very easily... And for me snow is the big zinger, way too much effort to clear the snow and keep the drifting clear to make it practical... There are several factors that determine the amount of maintenance,what works well for you won't work for all...
Also I would also personally not trust poultry netting to deter larger predators as it offers little physical resistance to a charge and since it generally is 48" or shorter, many predators like bobcat, coyote, wolf, domestic dog, and fox for example can clear jump 48" with a running start...
One has to also consider it's effectiveness against heavily furred animals as a good winter fur coat on a predator can render it mostly useless as well... As evidenced from the people I got my llamas from, they warned me 'my' llamas had learned that their fur protected them from shock and had learned they could simply bulldoze the electric fence to get to the other side or squish between strands...
I personally believe people give electric fence way too much credit based on their experience alone while discrediting others... I'm not saying it won't help and can be effective but it's far from the end all to predator protection many claim as it has several real identifiable weaknesses...
As I recommended, I'm a firm believer in layered protections...