I also have a daughter at Sydenham high. She started in year 7 after finishing at Dulwich Hamlet. A bit less than half of the year 7 entry came form schools other than Sydenham High Junior and they all seem to have integrated really well. Whilst we really liked Dulwich Hamlet, I think you can see the difference you get for your money. The classes are very small ( 17 in her form group), and there's loads of really good extra curricular stuff and all the girls seem to take part in something. My daughter is particularly looking forward to a netball tour to Barbados next term! They work them hard enough, and have exams twice a year which they are expected to revise for, but overall it's not super-competitive or pushy, and the emphasis seems to be on having well rounded, happy and successful girls. I'd say they are particularly strong on drama and do fabulous productions, but whatever you're interested in I think you could thrive there. Downsides are lack of on site playing fields, and possibly being a bit small and protected to give you a full sense of the real world. It seems that although they love it there, the majority of the girls go somewhere else for 6th form, possibly because they want something a bit bigger and with boys around. However, overall we're really happy with the school.