Thought I'd add my views since I'm surprised by some of the very negative, though perhaps out of date, ones.
We've 2 children currently at Chandlings, plus a daughter who was there from Y3-6, so have 'used' all years from Nursery to Y6. All have been there in the 6 years since the Head Mrs AJ arrived so can't compare to the previous 'regime'. However, we've been absolutely delighted with the school, staff, facilities, pastoral care and Head.
One of our children was suspected as having dyslexia by the school, confirmed by an Educational Psychologist, and the care has been excellent- having an extra hours one-on-one tuition each week (no extra charge) with an impressive improvement in English. The London based EP commented to me on how good the care is at Chandlings for kids with dyslexia.
We considered the other local prep schools but went for Chandlings as it's co-ed unlike the Manor. The Dragon was an option but I was turned-off by, what seems to me, a general air of 'North Oxford' pretentiousness of the parents (though we also live in North Oxford...). However, friend's kids are there and they're happy.
Some of the staff did leave soon after Mrs AJ's arrival but that is to be expected when a strong leader is making changes in an organisation- not necessarily a bad thing. I've heard bitchy comments about Mrs AJ, even from parents with kids at other schools with no link to her, and have often thought a lot of this was based on her looks rather than anything else! Incidentally, we heard today that she's leaving Chandlings to head a school in Australia from Sep 14. Their gain- Chandlings loss, in my opinion.
Academically the school website shows that the vast majority of girls go to Headington, St Katherines and Oxford High, and boys to Magdalene and Abingdon- our daughter went to one of those as her first choice. All of these schools are excellent academically as can be seen from the annual exam results tables. I think if you were seriously thinking of sending a child on to board at e.g. Eton, Harrow, Cheltenham Ladies then perhaps the Dragon would be more appropriate- but if not then Chandlings tutors the children to pass the exams they need. As a public school and Cambridge graduate myself (in response to previous comments above) I think Chandlings gets the academic, sporting and 'all-rounder' balance just right.
I believe that before Mrs AJ's arrival sporting success wasn't taken too seriously, with teams not being based on ability. However, my sporty child is in the A teams and they regularly beat the opposition, and my less-sporty child floats around the C/D team level as a perfectly happy trier. They've all done onsite horse riding, golf, tennis etc etc. The range of extra-curricular activities every lunchtime and after school plus during holidays is amazing and significantly greater than when our kids started.
In summary- we've both been delighted with the school and would recommend it to all !