I love GoT!
I think that you really need to watch more than one episode and watch them in order to totally get the story.
Yes, there are scenes that are incredibly disturbing, but they are important within the storyline.
George RR Martin writes his female characters really well - yes, each one has been through something terrible or challenging which shapes them. I see the main female characters as survivors.
When you watch the series you see an incredible story with incredibly complex characters. Yes, it's difficult viewing at times, but those scenes do make you feel so much for those characters.
DH and I have laughed, cried and cheered throughout the 7 series.
So I do think it's worth watching and I do think that the majority of the difficult to watch scenes are necessary in building the story and the feelings that you have for the characters. You'll root for some, loathe others and some you'll start out hating and be surprised about how you feel about them towards the end. It's really well written and utterly unpredictable, which, in a world of totally predictable storylines, is incredibly refreshing.
I think it's worth investing your time in the whole first series on the right order, then make up your mind from there.