I recently flew a brand new c++ and to my pleasant surprise, it had very comfortable seat in it. I do agree however that every other S76 I've flown (and there's been a few. Every model except the 'B') had very uncomfortable seats in them. Let's hope they keep putting the good seats in all the new ones and that this one wasn't a 'one off'.
P.S. I still think the the AS350 has the most comfortable seat that I've flown to date.