Just picked up mine today and put the rear facing seat in, with the passenger seat all the way back, and the seat in the rear facing position, they were touching, moved the passenger seat forward just a little bit to make it easier to rotate the seat, but even then there is loads of legroom for the passenger and a lot of room in the rear footwell for coats/bags etc..
The carwow review mentioned above is here;
As for the headrests, I found them comfortable and despite how they look in pictures, they feel like they are in a "normal" position, its more that the back of the seat has a hump, rather than the headrest juts forward.