Pros
None, really. Success depends more on luck than hard work by you.
Cons
Pyramid type organization where they get 70% cut of the profit from your sales, some goes to overhead but they make at least as much as you for every sale that you make. Rep contract is structured so that when your number of listings decline as they will due to number of items of heavy equipment for sale going down over time they can fire you and after you are gone the product that you listed is kept by them and if it does sell they profit and you are long gone. They are in a continual mode of hiring people around the country and the more items the sales reps list creates more competition for yours. More people hired at no salary listing more equipment on their web site equals more profit for them but less chance for yours to sell.