When are the effects most visible after receiving Volneumer?

If you look up Volneumer reviews, there are some people who say they saw changes immediately after the procedure.
I heard that some people said their facial contours looked more naturally defined after a few weeks.
Does the timing of when the effects actually appear vary greatly from person to person?
I am wondering if it is possible to only feel a slight tightening of the skin on the day of the procedure.
I also want to know if it feels like the elasticity gradually increases over time.
I am particularly curious about when the sagging around the jawline or nasolabial folds started to change noticeably.
Are there any people who said the difference was more visible when comparing photos than in the mirror?
I am curious if there are cases where people were initially disappointed because there was no significant change, but later became more satisfied.
I am writing this post because I am curious about the actual timeframe experienced by those who have received it.