One of my colleagues has a DC there (and her oldest left the school last year). She likes the school - says that it offers some fantastic "experiences". Also a good record of getting children into Northamptonshire/Bedfordshire private schools or Buckinghamshire grammars.
The wrap around/holiday care is also good - and used by the majority of parents so if you do use it your DC's friends are likely to be there as well! On the flip side my colleague moans a lot about the volume of homework - the school is very "academic".