TBH I've only tried one once on a BMW S1000XR and I didn't like it at all. But that's a very high revving engine with its power concentrated in the upper range. Once it's in the power it eats gears very quickly so I can see the point of it.
The Rocket's the opposite, low-revving, high torque and holds gears for far longer. However, I'd like to see how a rocket fitted with a QS would get on against a Ducati V4 Diavel in launch control mode. I think the Diavel would win but it would be fun to have a go.