How many Shurink Lifting sessions are needed to see results?

My facial contours look saggy due to chubby cheeks and a double chin, so I am hoping for a quick lifting effect to look younger. That is why I am looking into the Shurink procedure, and I am wondering how many sessions are actually needed to see noticeable results.

Looking at the reviews, some people feel their skin firmness returning after just one session, but I've heard that you need to receive at least two or three sessions consistently for it to really settle. Also, the duration of the effect varies from person to person; for some, it lasts for several months, while for others, it returns to its original state relatively quickly, so I am hesitant.

Due to the cost, rather than receiving multiple treatments blindly, I would like to know the optimal frequency and treatment cycle for seeing definite results. I am also curious if combining Shurink with other lifting procedures (such as Ulthera or InMode) would be beneficial.