How satisfied are you with Denser T-High, which fills in fine lines?

Now that I've entered my 30s, I can visibly see my skin getting thinner overall and losing its firmness... *sobs*

Fine lines stand out when I wash my face or apply makeup, so I am looking into radiofrequency lifting to firmly restore my skin's inner elasticity. I am posting this inquiry because the Denser T-High device has been really popular recently—it is said to be less painful than Thermage and densely regenerate the collagen layer. For those who have actually received it, are you really satisfied with Denser T-High for the improvement in skin texture and the firm, lifting effect? ​​I would appreciate any advice on whether you can feel the satisfaction after just one session, and how long the effects typically last.