How is the immediate tightening effect of Ondari Lifting?

I feel like my facial contours have become saggy and flabby due to fat accumulation under my chin, so I am looking for a procedure to firmly tighten my jawline. I was looking for equipment that I can get done immediately over the weekend without interfering with my daily life, and I was really drawn to Onda Lifting because it claims to have virtually no downtime—to the point where they don't even require anesthetic cream. I read reviews saying there is absolutely no bruising or swelling, so you can even go out with friends right after the procedure. Is that true? I am curious if I can feel a tight, snug sensation. Or, like other lasers, do I have to wait patiently for about a month for the elasticity to gradually improve? I am also curious about how long the smooth facial contours typically last after Onda Lifting.

Considering the cost-effectiveness, I sometimes think about just getting what I'm used to, but the advantages of it being painless and having a quick recovery keep me debating. If anyone has recently received On-Da Lifting at a clinic, please leave your honest feedback in the comments.