For those who have received 600 shots of Density, when did you start seeing results?

I tried the Density 600-shot treatment for the first time, and it's been about two weeks now.
Right after the procedure, I felt a slight tightening sensation on my face, but now I don't really notice much of a difference.
I got this specifically for sagging cheeks and my jawline, so I was hoping to see some change in the lines, but it isn't as noticeable as I expected.
For those who have received Dencerty, did you usually see effects starting from the second week, or does it take about a month to see definite results?
I'm also curious how many shots you used and how long the effects lasted!