I am interested in a leg lifting procedure.

Hello. Lately, every time I look in the mirror, I notice my cheeks and double chin have sagged significantly, so I am looking into lifting procedures. I am particularly drawn to the On-Da Lifting procedure because it is said to be minimally painful with almost no downtime, but I am curious to hear about the results from those who have actually received it. While reviews mention that the lines are refined painlessly, I also hear that the effects appear gradually over time rather than immediately after the procedure, so I am not entirely convinced if the satisfaction level is high considering the cost. I was debating between traditional procedures like Ultherapy and Thermage, but I am leaning toward the On-Da Lifting. Do you think I can still see significant results even if my skin is thin or the sagging is severe? I would be extremely grateful for any honest, firsthand reviews or advice regarding side effects and the duration of the results.