Is the Thermage FLX 600-shot treatment worth the price—really noticeable and long-lasting before-and-after results?

As my fine lines increase and my skin thins, I am finally taking the plunge and looking into Thermage FLX to restore overall density. Since the price easily exceeds one million won, I am debating whether it would be better to get 600 shots with genuine tips in a single session to ensure full results. I am curious to know if those who have actually received the treatment noticed their skin becoming firmer starting a few weeks after the procedure, and if the effects last for nearly a year.