I saw it at the cinema last year, and it's certainly von Trier's most attractive looking film, shotwise. Not really a contest, mind, given the hand held qualities of other films like Breaking The Waves and Idioterne. That opening scene is beautiful and the accompanying music creates a harmony between them.
I don't think it's so much of a scary film although it definitely does something different with the horror movie model, and in a time of horror spoofs and torture porn franchises, it breathes new life to the genre. Von Trier's no stranger to horror, as his TV show, Riget, featured many elements of such, and is probably what prompted the unnecessary remake as Stephen King's Kingdom Hospital, but Antichrist worked its levels of comedy and horror seamlessly together so as you were never quite sure what was shock and what was funny.
This reminds me I must order the DVD.