Hi I am adding to this thread late in the day but maybe it will help others. I have a child at this school and I profoundly disagree with the point that the school is for a self starter.
Yes, the forms are of 30 but that is just your form. Not your group you are taught in. The groups are quite small.
I am a parent to boys and girls of different ages and I have a wide network of friends with children at different schools and I can say with my hand on my heart that NH&EHS has the best pastoral care out there. Apart from maths, they do not set, they also do not chuck out if GCSE results are poor, staying loyal to their girls. I wish to god I could find a school like this for my boys. My DD has some health issues and her annual report from her Paediatrician even reported on the excellent support she was given. The SEN support is amazing. The teaching is not uniformly amazing (is it anywhere), there are always things to improve but is a caring, listening school with in the whole exceptional teaching and I don’t know anywhere better. My daughter has done exceptionally well academically there, and I don’t think she would have achieved it anywhere else because she needed pastoral support.
If you want a caring school that can enable your child to do their best you can’t beat NH@EHS, also they now have coaches so you can actually get your child there and back if you don’t live in Ealing.
The mums I know who have children at Habs girls regret their choices, ditto G&L and LU. A clever girl will do well anywhere. NH@EHS is the best in my view and you should definitely consider it if you can get your child there. They really take care of your child and the classes are not big. At A level they are tiny, 6-8 nowhere to hide. The only other schools where parents I know are universally happy is SPAGs. This is my snapshot although others will feel differently.
Junior school is great, very happy, girls do equally well but some get itchy feet and tend to leave for 6th form, it’s a long time to be at one school.
New head has not made any discernible changes apart from the coaches ands seems a steady pair of hands and taking a gentle approach.