Not my wife, but one of my mates had implants.
I can’t comment on them personally, frankly post op I struggled the tell the difference, but my female friends who saw them uncovered said they were very ‘good’.
She was very happy and it made her more confident in that respect. I was surprised as she was an attractive women before / after, but if it made her happy.
The downsides, the same body image issues that drove her to have them, also drove her to think the weight gain she had post op was due to her getting fatter, wouldn’t hear the simple maths/physics that the implants weighed a decent amount, so went mad at the gym and dieted even though she was technically under weight and meant some health problems until she accepted the obvious.
She caught an infection post-op even though there were no issues during surgery and she took the proper precautions, just one of those things, it was painful and meant 4 weeks off work over the 2 she took for the op.
AFAIK they don’t last forever, even the newer ones, they’ll probably need re-doing, removing later in life, more expense / surgery.