I watched this again last week and even in Italian with no English subtitles it's still entrancing in it's own uber-trashy way. Its' sheer mean spiritedness always astounds me, especially the scene with the prostitute in the dump. Ouch!, that's got to hurt!
Edit: It has a cracking theme tune as well. It's as out of place as Ritz Ortolani's lush strings in Cannibal Holocaust.