OK, straight off, I don't 'do' military stuff. So, I was prepared to be bored, and only went because it was where my cousin wanted to go. It is a surprise to me that I actually enjoyed my day out and that I would recommend it to others.
So what changed my mind? The displays were varied, some of them interactive. They mentioned a wide range of roles, not just of the pilots. Women and BAME were represented. Included other countries. Good range of stories, it wasn't just 'flying machines'. Obviously, the planes and helicopters were really impressive. And there are so many different exhibits.
I saw many families really enjoying interacting with the exhibits. It was good to get inside one of the planes. Seeing the WW1 planes was moving, people actually fought in them, it brings the reality home.
The site is massive, three huge hangars. I would recommend a whole day. We got there a bit before lunch and were unable to see about a third of the site because we ran out of time.
Given that this is free, if I lived locally, I would come again.
I can't comment on the food/restaurant because there was a power cut the day I went, which put these facilites out of action. We could still get tea and coffee (good quality).