First cycle of Letrozole

Divsu • PCOS, annovulation! Two failed IUIs, IVF - 1st FET- miscarried @8 weeks. 2nd FET failed, 3rd FET chemical, 4th - BFP!!
I have PCOS and been TTC since an year now. I was on 5 cycles of Clomid which are unsuccessful and now my doctor put me on Letrozole. 
Would love to hear any success stories with this medication, I will be taking it tonight.