Not sure what to say; but being really general and subjective, I'd say that they are very listenable, but perhaps just above average at resolving transients. They are very good for making a very listenable speaker for little money. The cones seem softer and more damped compared to pro drivers, and of course compared to metal cones, but deliver very believable/appealing mid-bass and warm mid range.
The biggest I know about is an 8". So it would take a few of them to really move much air.