In Mode, Ulthera Do you have any tips for choosing a factory-type hospital?

I went to a siamesis hospital and was told that I have a bit of cheek fat and a lot of sagging fascia. Rather than dialysis, I want to get a dermatologist treatment first before deciding, so I'm planning to
 
get Inmode + Ulthera or Shurink, but
 the prices vary greatly depending on the dermatology clinic and
 it looks good. Dermatologists
 say they are too expensive (Inmode says it takes at least 3 sessions to be effective, but costs 500,000 won per session, and Ulthera costs 150 won per session.) I'm still a student, so I'm looking into factory-type dermatology
 
clinics because of the price,
 but the factory-type dermatology clinic is cheap but requires a lot of attention. Just because they say they use less or are often ineffective,
 do you have any tips for finding good hospitals among factory-type dermatologists?

When I just search and find it, there seem to be so many comments that I don't know how to distinguish them.