PedroM - Same for me, the only ones that I had problem with were the ones for the N struts. I was always worried about "what if" regarding the brackets without replacement access. but so far they hold up.
I was lucky to have a friend who worked with the laser cutting industry and he got me a full replacement set made out of stainless steel.
if you have the capability to substituted the Aluminium brackets with stainless steel brackets, I suggest you to have them replaced.

Cheers,
Eran