Bought these for my 8 year old son who is hooked on the CBBC TV series. He absolutely loves them and has learnt lots of gross facts about all the historical figures in the set.
Only note would be that they say they are 3D Top Trumps, but you need to enter a code from the cards onto a website, show the card to a webcam which will then return a 3D image. This didn't really bother my son but I felt it was slightly misleading. Lots of fun nevertheless!