Did you do radiotherapy?

I am looking for some sharing/contribution esp for those who had hormone -ve Her 2+ve diagnosis.  I had stage 2 grade 3 tumor 2.5cm. Lymph nodes clear and a mastectomy done.

Four chemo rounds + Herceptin prescribed.

I think I have to make a decision with radiotherapy soon. The chief radiotherapy oncologist who saw me twice so far felt radiotherapy would do minimal benefit for my case. Whereas another felt I would benefit somewhat. It's kind of borderline for me.

Thanks.