Is the advantage of On-Da Lifting that it is painless really true? ㅠㅠ

I'm looking into lifting procedures because I can see my jawline becoming dull and my facial contours sagging, but I'm a total wimp who absolutely cannot tolerate even the slightest bit of pain ㅠㅠ. I'm just too scared to try those machines that are hot and painful even with numbing cream on lol. But lately, I've been hearing that they aren't very painful and just feel cool. Leg lifting I'm totally intrigued because I've seen so many reviews! The fact that it doesn't hurt is great. Leg lifting I heard that's the biggest advantage. Even if I get it done on a face with a severe double chin like mine, will the lines still lift smoothly? I work, so bruising or swelling would be inconvenient. I need to get it done on the weekend. Leg lifting I'm also wondering if I can cover it all up with makeup when I go to work on Monday ㅠㅠ Please leave some comments from those with experience on whether even a scaredy-cat like me can get it done with peace of mind lol!