My DD1 sat an 8+ exam/assessment day to two different schools.
School n.1 was a mix of tests, reading with a teacher, informal and formal interviews, playtime, a lesson with a class, etc...all great. She loved it.
School n.2 it was tests ALL day apart from a short break at lunch. My DD said nobody talked to her, no interviews, no informal chats, just head down on papers all day - there are no follow up interviews. She said she didn't like the vibe of the place.
I was a bit shocked that a school wouldn't speak to a child and try and get to know them a little and has really put me off the school, which allegedly has great pastoral care! My DD had a huge headache afterwards whilst when coming home from school 1 was fresh as a rose and very happy. Funnily enough school n.1 is much more academic too. Any thoughts?