I have also only seen the cow scene, as well as this little part
http://www.youtube.com/watch?v=0MUehcWX1OU
But after those bits and especially THE TURIN HORSE, I'm absolutely willing to trust Bela Tarr with 7 hours of my life; it's just a matter of when. I don't think I've never seen any other director - certainly not any living director - create a film in that way, just taking a scene or a shot in which, formally, very little happens, and making it so incredibly atmospheric, hypnotic and haunting. I'm positive that if any filmmaker with even a bit less talent attempted to make The Turin Horse, he'd be laughed off every film festival in the world, but Tarr is both uncompromising enough and talented enough that he makes it work. I'll stop here because I don't want to review another movie in this thread, but I'll just say that I hope - and, to a reasonable extent, expect - that Satantango will have the same effect on me. That it's apparently clearly divided into 12 parts could only help - in the absolute worst case scenario, if you still want to finish it, you could just watch it over a few days as 12 short films. But I'm not personally expecting that scenario.