I would like to inquire about the price range and treatment time for InMode at a dermatology clinic in Gangnam.

I’ve heard a lot that InMode lifting is cost-effective and effective for refining facial lines.
I am planning to book an appointment at a dermatology clinic near my home or a hospital in Gangnam this weekend to get an InMode treatment.
Since InMode is such a popular procedure, the price variation between clinics is so severe that I wasn't sure what to use as a standard.
I am wondering what the reasonable average price range is for an InMode treatment. I am worried that if I only look for the cheapest places, they might do a sloppy job.
How much is it generally reasonable to pay to get satisfactory results?
And just as concerning as the price is the treatment time.
Since I am an office worker, I have to make time to go after work or on weekends, so I don't have much free time,
After doing some research, I heard that places that provide thorough treatment dedicate a full 20 to 30 minutes to the actual procedure, covering both cheeks and the double chin. However, I am worried because I saw some disgruntled reviews stating that some "factory-style" clinics finish in less than 5 minutes just going through the motions of applying the device. Usually, when the director personally examines the facial contours and applies the treatment with care, excluding the facial mask application and anesthesia process...
I would like to know the average pure treatment time using only laser equipment.
Finally, I am curious whether the lifting or double chin liposuction effects last noticeably longer at clinics that definitely take longer to perform the InMode procedure and deliver more energy. If anyone has received InMode treatments regularly, I would appreciate it if you could share your honest advice and information regarding the appropriate standards for what felt like a waste of money and the actual duration of the session. Your comments would be a huge help in choosing a clinic. Thank you!