I am finally over my 12th house Transit Pluto Square Moon... i was literally on my knees begging the pain to stop. But well survived it, still a bit shaky but ok.
I will have Pluto Square Sun in two years... anyone here who had both transits? How did you deal with it? Which Transit was harder?
I've had both... twice.
I think the Pluto sun transit is worse (by far), though I am not sure others would agree.
The reason is because the moon and Pluto are more compatible - both yin. What occurs is mostly private?
Contrast with Pluto sun, where your "light" becomes shit-covered, basically. It's quite hard.
EDIT to correct...
I'm sorry, I misread this. I did not comprehend the "square" part. I was thinking of hard Pluto transit in general.
The rest of what I said, stands. I would take Pluto moon over Pluto sun, given a choice!
Definitely Pluto square Sun was hardest for me - I'm still feeling the aftershocks! What Elsa said about Pluto square Moon is true - it really, really hurt, but it was a private hurt, and I was able to look outside myself for comfort, up to a point. When Pluto squared my Sun... I lost friends, my reputation, my self-belief, it really rocked me to my core. BUT, I am building myself back stronger, I feel more steely and determined to be true to myself and my values - more than ever before.
Wow that sounds awful... i already lost friends and broke with family.
It might be helpful at this point to post your chart or look for the mitigating factors that will also be present. (((amuseme)).
Im exhausted just by looking at it. And after Pluto is done with my Sun, he will strangle my Mercury Chiron Conjunction. Lovely. 
Don' t know why i see Pluto as men...
