They totally feel like Williams Superpin, I felt home the first time I plugged my WOZ, flippers feel less snappy than Stern and reminded me of STTNG. They do have a different way of hitting the ball than Stern, I wouldn't say weak especially since the power can be fine tuned, but they feel more like they scoop the ball instead of hitting it, it's hard to describe but I hope it makes sense.

I now have a WOZ and a DI, I can say there is no such thing as JJP flipper feel.
These 2 are very different, WOZ are powerful and fast, DI are smooth more pushing the ball than hitting it.
Both suits the gameplay very well.