Change of fertility medication

Emily

Hello all...I have done 4 IUIs with clomid so no I am seeing an specialized Dr. Due to insurance I have to do 2 more IUIs before trying any other treatment. He switched my medication to Letrozole. I have reservations and are sceptical since I hear most people so Clomid. Any advice, luck, and/or anyone else on Letrozole?

Thanks!