I went to one earlier this week. The interior finish exceeded my expectations. I though it was very stylish and much better than in photographs. It is true that the car isn't really a five seater. My children have left home, so now's my chance!
I went to the one in Woodford last night. They had an XE-S in Ammonite Grey, which was great as that's the colour I've ordered (though 2.0d 163 Prestige).
Interior seemed better than the preview I went to back in November. Felt just as good as my Audi and better than a BMW. Colour looks amazing. Glad I've gone for the light interior as it was a bit dark with all black, including headlining. Also glad that I specced the reversing camera! Not loads of room in the back, but I could sit in the back with seat set to my position without my knees hitting the front seat (I'm about 5'11).
Thought the car made the current XF look a bit dated, which I wasn't expecting as it's still a great looking car after 7yrs.
Real shame the battery was flat as I wanted to play with the Meridian stereo and the sat nav, but guess I can do that all I like once mine arrives in June.
Have attached a few photos - see there's another thread on here with some better ones - looks like same car, different dealer.