This is the article. 30% of pupils achieved A grades at AS. Out of 140 pupils, 16 students got all As. 40% of students who picked maths and geography got the max grade of an A. These results are good, definitely if compared against an average school. As they do not have A2 results, we cannot fully compared these results with some grammar and private schools, but I think that these results are still really good (even if they aren't up to the standard of the elite schools). However, HWSF expects there to be a vast improvement next year, because, it is their first ever results.
The article then talks about HWSF and Westminster school and how they teach.