Not even in the same realm of an on/off clutch. Very easy to drive once you get used to it. It's not free of noise on initial start up but chatters a LOT less once it warms up. That's also sensitive ears, overall noise level is probably a 3/10 at start and a 1/10 afterwards whereas before it was 1/10 and no chatter afterwards.
Note,
this was with about 80 miles on the clutch, since it has broken in it's about 2/10 on start up for a whole 20 seconds while the car is warming the cat up,
and after it's done doing that you have to try and listen for the sound to be able to hear it, and sometimes you still can't find it.
Any single disc clutch that's non-organic is going to be exactly that. The clutch pedal is heavy, but there's a few cars out there that have heavier clutches stock that I've driven. Both the 350Z and 370Z are culprits that come to mind.
As I've said before, it's no where near as heavy as the Exedy Hypersingle I had in my Cobalt SS. For reference, the stock clutch in that is about as light as ours.
The Hypersingle is a 6 puck sintered metallic/ceramic disc:
^THIS clutch was an on/off switch, did not slip unless something went wrong, and probably the heaviest pedal I've ever stepped on. Chattered a bit too.
The DKM twin disc is no where near as hard to drive or anywhere near as light switch as the old Exedy I had.