Is facial fat transfer recommended? Seems some doctors aren't fans of it!

Late 30s. Thinking of getting facial fat transfer to temples, under eyes and lateral cheeks. I have been doing my research and most doctors seems to love facial fat transfer san a few say it's unpredictable, "injecting scar tissue", or it doesn't last. Can we put this to rest? I know fillers and sculptra are options too but I have done both and results are mediocre. Fat is natural and longer lasting it seems? Thank you