Anyone using Edubuntu?

Having just bought my wife a 24” iMac for her birthday, I’ve got a nice Dell PC ready to do something with. I figure since my son is now 4, he’s ready for his first computer of his own (I think I was 8 when my Dad passed his Apple ][ down to me). I’m taking the Windows XP license off of that computer so my wife can run Parallels with it so I figure Linux is a good choice for him. I’ve looked at Edubuntu a couple times and it appears like it will be perfect for him, but I’m wondering if anyone else have any experience using it. Should I bother or would it be better to just install Ubuntu itself?