If you nursed past a year and let LO self-wean, can you tell me about how it went?

My LO is now almost 20 months, has been nursing morning/evening only since 13 mos, and is showing no sign of stopping. Sessions are short but she is clearly interested.

I don't have a game plan but would like to be done before she is 2, so I am curious about others' experiences. Thanks!