Only had it 6 weeks and I'm getting rid it before my back goes completely.
Beautiful car, well balanced, easy to drive, lovely to take round country lanes and very quick without being flashy (no spoilers - nicely under stated) but so uncomfortable on the motorway. Alfa dealer says no lumber support on the car because the seats hold rear passenger air bags - I have tried to live with this car because in every other respect it is perfect but it's going to have to go!
I had the same problem with the lumbar support in my 156; 60 minutes was the max I could sit in the car. The rest of the car was great.