I have the same issues with the condensation in the headlights too. The ones in my A4 used to do it too. Guess its an Audi thing.
I've also found mine does fog up alot easier than the A4 did, but read somewhere its a pretty common thing on the A7s, its easy enough to get used to, i just have my heaters on low all the time.
The only other thing is the drivers and passenger windows, when i put them down and then back up again, the inside of the glass has moisture on it, and it drives me barmy! As it dries with droplet marks on the window and when i clean my car now i always have to do both sides. Not good.