Watch out for the dreaded babies in First. I was seated in 1K LHR-SYD and 1A was..to my disguised horror..a mum and screeching infant in what is legitimately a bassinet seat. her husband (partner?) was in 2A and was in no hurry to swap with me! Perhaps he was just being polite because eventually I encouraged a swap. Can't say it made for my finest First experience and I fear few others got the sleep they had hoped for in a full F cabin. My fears were confirmed when they reboarded after the SIN stop.