Bushing driver, good bearings, super quick engagement, and loud sound partially greased or fully de-greased.
The axle nuts and washers are made of aluminum which wears quick and may strip if you run pegs and need to really crank down on the nuts.
The bushing driver and tough bearings ensure a bombproof hub, especially the bushing. And no matter how much the pawls and ratchet are lubed up, the hub is still loud enough or more than enough, and the engagement is super quick! One of the BEST Demolition hubs ever made. The Demolition Rolls V2 is probably even a better step-up with a nearly indestructible female 14mm!