In Europe Sensatec dashboard is mandatory only with black leather with blue contrast stitching (MANL) and it's also part of the Luxury Line package. I'm not sure for USA.
It's not harder than standard plastic dashboard, but it just looks and feels so artificial, especially on the doors which are closer to the eyes. With plastic you know what to expect and it's also very high grade if you compare it with other cars, even with older BMWs from similar range - e.g. with my F30.
Artico artificial leather in Benz looks and feels better - and I'm no fan of Benz.
I'm not sure whether the real leather dashboard will be available later - as on G30.
Of course - every one should see it in person and decide for himself. That is just my opinion.
p.s. There is very similar topic on Bimmerfest forum