Hello all,
My DD is planning on changing into a new school to start her sixth form because she absolutely hated her current school. Unfortunately I am not able to attend open days and neither can my DD as she is an international student and we don't live in the UK, so it would be very helpful to hear some opinions and recommendations from other parents who has their kids in these schools. 
DD and I have found a few schools that we quite liked:
Westminster
Brighton
Wellington
Oundle
Epsom
City of London Freemen's
Charterhouse
DD is academically decent but she doesn't really excel in anything else. She is also quite active and plans on doing Physics, Chemistry, Biology and Maths for her A Levels, so she's kinda a STEM kid. She will also be a full boarder.
Moreover, Oundle and Wellington require DD to complete a UKiset examination since her first language isn't English. So im not quite sure whether that is worth it.
Thank you so much in advance 