What are the results like after breast fat grafting?

I am a woman in my 20s considering breast fat grafting. Lately, my friends have been telling me that their confidence has increased significantly after the surgery. I am curious to know how satisfied those who have actually undergone the procedure are with the changes in breast shape and elasticity. I would also like to hear about personal experiences regarding pain during the recovery process and the return to daily life. It would be very helpful if you could recommend any hospitals or let me know of any precautions I should take.