However it's just elicit laugh from me and a fun good time reaction. Sort like watching a cheesy B-grade horror movie, The last movement sounds like a bunch of horror sounding music smashed together. The hitting the strings with the back of the bow is a fun gimmick. It's fun to listen to and it is a spectacle but it's not threatening or scary.
Even the march to the scaffold, the guillotine and then the head drop into the basket effect elicit a laugh from me and the audience. The fourth movement is enjoyable but I liked it as the blaring horn theme is fun and catchy rather than being swept away by the atmosphere of a person being sent to be executed (doesn't the fourth movement seems just a little bit too fun, celebratory for it's intended effect).
I guess back in the day it was considered controversial and the modern day audience is now desensitised to it.
I just get the feeling that I enjoy Berlioz Symphony Fantastique in an entirely different context to what it was intended to be enjoyed as. Instead of avantgarde psychological drama it's popcorn excitement.