When do I start feeling the effects after the Ulthera treatment?

Does the Ultherapy procedure immediately refine the facial contours? , I am wondering if the elasticity gradually improves over time.

I am hoping to improve my jawline or reduce sagging cheeks, so I would like to hear from those who have undergone the procedure about how long it took to notice the effects.

Is it that there isn't much change at first, but a difference becomes visible when comparing photos later? , I am curious how long the maintenance lasted.