I fitted the clutch to ^^ Mister Two's car and another customer shortly afterwards who purchased the same E-Bay (USA) HD kit. I found it to be quite harsh, grabby and overly heavy.
The second one was particularly bad, in fact had the customer not supplied it himself I would have removed it as faulty. He stalled the car about 6 times. The shudder has subsided but it's still very heavy. I wouldn't recomend it for normal use unless you want a left leg like Arnie.

Any HD clutch plate will transmit more gear noise, that's a fact of life.
Another consideration is that a HD clutch does not necessarily mean longer lasting, it simply means it'll hang onto more power. If you are not exceeding the rating of a normal clutch, then don't waste effort pushing a heavy diaphragm down thousands of times in it's lifetime.