I've got a pair. As delivered, they would probably work pretty good on dirt cuz they are fairly stiff and the rebound seems right. I am tuning mine for road racing though. I think they will work good for my purposes when I am done tuning with oil.
Don't judge them until the fish oil that's substituted for fork oil is changed though. It makes a huge difference in thier movement. Do not skip changing the fluids out for quality stuff!
The clutch lever and the throttle are poo. The clutch lever is a rattler and the throttle sticks and does not have smooth movement.
You have to give the brakes time to bed/break in. After that, they are good binders, but you might want to have a spare lever in case you take a good fall.
If this thread is still alive after I get a chance to test them on a track (road racing), I give my evaluation for that.