Is my manure good?

Farmyard manure will have all sorts in it, it's from the farmyard heap where everything gets chucked!
A different sort of manure is stable manure which is just straw or wood shavings/chips and horse manure, so will look completely different.
The OBs on the plot seem to think that they all work just as well, and there's always a big rush for whatever gets delivered  :blink:

Depends on the animal that produced it.
If it came from a crew yard which house cattle, then it is un likely you would see lumps of poo, but you would get quite a claggy mix of very soggy clumps of straw glued together with brown stuff!!!! It might also appear muddy. That sort would also be more likely to have other bits in it, particularly as it would be scraped out with a tractor.
Horse manure on the other hand tends to be a mix of approximately golf ball size lumps and straw or shavings. This tends to be a drier looking mix and probably easier to shift around by the fork or shovel full.
How big is a large amount? Here abouts it can cost up to £100 per ton for rotted manure delivered, average price is between £20-£40 per ton, but you have to dig it out yourself and take it away.
I'm lucky I can get it for free.