I've been driving manuals for over 20 years. The judder (or chatter) I'm experiencing is not due to operator error. The car will pull away more smoothly with added rpm, but there really shouldn't be clutch chatter when leaving at 1200-1400 rpm...that's plenty of revs for a smooth, easy take-off.
AFAIK, clutches with ceramic-metallic linings can exhibit this trait. I'm not sure if our cars have them, though.
To my knowledge, in years past, only certain aftermarket high performance clutches would chatter at low rpm. This is the first production car I've owned with clutch chatter. It's not really bad, I'd call it mild, but it should be smooth.