What are the characteristics of Ondari Lifting and the level of pain?

I felt like my facial contours were sagging, so while looking into lifting procedures, I learned about a treatment called Onda Lifting. I heard that unlike conventional lifting procedures, a major feature of Onda Lifting is that it uses a microwave method, resulting in significantly less pain.

I usually have a very low tolerance for painful procedures, so I'm really leaning towards this one because of the claims that it's minimal. For those of you who have actually received Ondari Lifting, is the pain really that minimal? I'm also curious how long the procedure takes and if immediate line-shaping effects appear after just one session. I would be very grateful if you could also let me know if redness or swelling lasts a long time after the procedure!