i just bought the 4.3 cu ft version for my 34" simplicity walk behind hydro mower.. i love it, i rarely use it but its great for leaf cleanup jobs, fills fast and picks up a lot since it allows a lot of air volume to dissipate through the mesh easily. I doubt id ever get the huge one for my 61" ferris, that would make its with into the 80" wide range, i dont plan on getting off my ztr mower every minute to empty the thing lol, if i had the right customers willing to pay a premium in price for large yard bagging, then id consider it.
i would say my small one weighs about 45~lbs full with dry/green grass.
Ford Trucks, Simplicity machines, John Deeres, Ferris mowers, Stihl/Echo/Redmax handheld equip. lots of trailers