Hi there,
Haven't had this surgey myself, but both my mom and sister had it done. My sister needed both shoulders done actually. They both recovered very well, needed some therapy to help with range of motion, but all in all, they did great. I do remember that the bra thing was big issue for my sister. Not so much for the strap hitting the surgery site..., she could pad those areas, but she really needed front closures. It was so much easier for her to get dressed once she changed to that type of bra.
Hope all goes well!
Jody