What should I look for when choosing a Shurink clinic?

I am looking for a hospital to get Shurink for the first time.
There is quite a price difference between hospitals, so I'm having trouble deciding which criteria to use when choosing.
I am wondering if it is okay to simply choose a place with a low price.
Are the director's procedural experience or the type of equipment also very important?
I am also curious if there is a significant difference in effectiveness depending on the number of shots, even for the same Shrink treatment.
Should I also check if they adjust the number of shots according to my face shape or skin condition?
I am also wondering if I need to pay more attention to this aspect, especially if I have little cheek fat.
I would also like to know if it is good to choose a clinic that explains the treatment area and intensity in detail during the consultation.
Please let me know if there are any specific things I should check in person when choosing a hospital.
For those of you who have actually received Shurink, what criteria did you use to choose a hospital?