I also had mine yesterday. The dragons den activity was good and whilst my interview went well I got kinda annoyed. The physics teacher to my left who was conducting another interview kept intervening and making snide comments. E,g, I was told to list my favourite films, I said "Avengers" and he intervened by saying "Avengers Assemble, get the name right" even though its actually "Marvels the avengers assemble"
We also had a question asking where would we go at any time in the universe on a magic carpet. I said to see the Big Bang and he again butted in with some dull explanation before I asked "If it's magic, doesn't that mean science is irrelevant now?"
Overall though my interview went fine. The only issue is the interviewer said that it isn't for creative people. They're incredibly academic and only want the top grades. He said I suit the college. But it might not meet my demands.