Someone posted before on the NICO forums that they got it done in Toronto (where they live), and paid $2000, which seems like a lot. I paid $2000 extra for the sport and technology package. It would have been cheaper for them to get it from the start, but then again, I think they had a sedan.
I use my sunroof daily. Had it tilted up today for some fresh air. I love having the sun light come in through the roof as I always have the shade drawn back.