That Craftsman unit looks like it would be fine for a number of applications.
I perhaps should not have been too down on the ArgiFab models as they would probably be fine for most light duty tasks such as leaves & grass clippings, mulch, small tree branches and even a few sacks of fertilizer.
Full loads of dirt, rocks, firewood, etc is where they will not come close to living up to their advertized load capacity. This may apply to many other brands of light duty garden carts as well.
So for many light duty garden tasks these may well serve the purpose at low cost if you mentally cut their rated weight capacity by half or so. For heavier tasks some of the light duty "farm" carts & wagons may be better suited, and even then one perhaps should regard the weight ratings somewhat sceptically.
In the size and type catagory, that King Kutter tandem axle dump cart I mentioned above seems to be pretty solid. May be more than some of the green PTs need, but would be a good addition for any of the red machines.