With Botox, is personal satisfaction more important than changes that others notice?

Looking at Botox reviews, there are people who say, "I am satisfied even though no one else knows," and others who say, "People around me say it has improved," so it seems the standards differ.

I am more interested in natural-looking results than noticeable changes, so I am curious about what your actual criteria for satisfaction are.

For those of you who have received Botox, was the part you were most satisfied with a change that only you could perceive?

Or was it when there was a reaction from those around you?