I'd like to echo what Gliderrider6 has said.
It was an intense, but thoroughly enjoyable experience. I blew my chances, but honestly (despite being very cheesed off with myself for several hours), I'd don't mind since the other candidates I met on the day were thoroughly pleasant people to chat and work with.
All in all it's been an interesting few months and no regrets. Good luck to the others who made it to last stage