I think if it wouldn't be for her lifestyle (late nights, drugs, drink) she wouldn't have that many wrinkles (forehead, eyes) and might not have needed surgery. Compared to Cindy Crawford or Claudia Schiffer she looked much older from when she turned 37 or so.
Has she had surgery before that face lift? I never thought she had and thought it was cool that she hadn't and that she never fixed her teeth to look perfect. The lack of perfection was her secret ingredient, coupled with her mysterious aura (never explain, never complain), her life style and romantic partners it made her stand out.
I think it is a shame that she never got to be the rock singer she hoped to become, she was on stage with Pete D and is a background singer on one of his records, but think she wasn't allowed on stage with Jamie. A shame really, she would have surely been great (not on her own, but maybe with Jamie. But then again it would have been a crowd, as Alison Mosshart was already there and Jamie's stage partner).