I had a double with tissue expanders. I was in my early 40s and can confess I probably didn't give myself adequate time to heal before resuming a very vigorous lifestyle. That was a mistake.
I regret the implants and have had considerable trouble with them. The process of filling the expanders to stretch your chest muscles is very painful though only for a week or so each time. I had to travel 300 km for each session so my surgeon pushed that process a bit harder than normal to spare me extra trips. Also a mistake.
I suggest you have a look at your body and assess how any old wounds have healed. If, like me, you form thick ropey scars, please talk to your surgeon about what that may mean if you choose the implants. Mine are still giving me grief after years. Marg