Have owned S tronic S line 2 ltr MY 13 for 2 weeks now. I do not hate it, neither I love it. Most importantly I am not enjoying it. I thought that the car will grow on me which has not happened. I do not have any bad thing to say about it. I am no car expert, However, I prefer the comfort, quiteness, seating position, handling and the sheer acceleration of the XF. Hence in next few weeks it will bye bye for Q5.