I've never used cream, always milk.
My mum used to be a caterer and woudl supply all the local shops with their sandwiches and fresh homemade foods. Along with teh sandwiches, nut rissoles and flapjacks she would make endless frigging quiches. I used to earn my pocket money grating cheese!
As a result of this ('mum, I'm hungry' 'Why don't you have some quiche?' 'Again? Bleurgh') I didn't eat it for years.
Dh finally pleaded with me to make one as he loves it and his never worked, and proclaimed it better than his mums, so I make it all the time for him, and little weeny ones in a muffin tin for DD's snacks. I use a muffin tin as then you get more filling in, the pastry shrinks down as you bake it.