I have had two children go through the school. Both academic and one with special educational needs. Both got excellent GCSE results as well as extra curricular opportunities in music, sport etc.
I agree that there are many excellent teachers and come discipline issues in some classes. I don’t agree that the management is poor, but from what I understand the school has been having more behavioural problems post Covid.
Our experience has been that the school does not set or stream, although they do provide additional support for children who need it - the rationale shown by research that this approach has the best academic outcomes for the most children. This has not seemed to get in the way of my children achieving,