I've been in a+e quite a lot over the years.
When DS1 was knocked over a few years ago and we were blue lighted there it was amazing, not only was his life saved but the care they (and the police) showed to me and DP was amazing.
3 weeks after that we were back with DD2 and a broken wrist (we're an accident prone family!), we had to wait a few hours but I knew that there were really 'serious' issues being dealt with, and quite right too.
DP went through a phase a while ago where his lungs kept collapsing, when he had his first full collapse there was no waiting at all.
DS2 had bronchiolitis at 8 weeks - we were seen straight away.
DD1 with a 'thing' stuck up her nostril when she was 18 months- we had a bit of a wait 
A few months ago my grandfather (who at that time was being assessed in a geriatric unit) was transferred to A+E with a dislocated shoulder. I waited with him and was touched by the compassion/care shown to a very old man who was confused and in pain -and how they worked their asses off to get him seen/sent out asap.
A+E is a wonderful thing IMHO when you have a real A+E to be dealt with. I take my hat off to all A+E staff, without them I probably wouldn't have my DS1 or my DP.