I saw it when it hit the theatres, one year or so ago.
It's a shocking film, like every Lars von Trier film, and like many Lars von Trier films there's not much more that makes the film any interesting (apart from the beautiful cinematography, probably).
Personally, I found the film to be a waste of time, because it really isn't more than an "artsy" horror film.
However if you want to watch it, do so, form your own opinion.
If it's the violence you're worried about, well, yeah there are mutiliation scenes in closeup in Antichrist; but since that's what the film's aiming at fast forwarding those scenes will ruin the movie.