Femara/Letrozole

Molly • Fertility baby 03/2017 💙 Naturally conceived baby 08/2020 💗
Ive been TTC for going on 1 year and i have PCOS.  Anyone with PCOS who was Clomid resistant tried Letrozole? If so did it work? Symptoms? 
I started Letrozole today after 3 cycles of clomid resistance.