I'm curious about the satisfaction levels of those who have received fillers.

I am in my 30s and am considering minor cosmetic procedures because lately I have noticed areas on my face that have lost some volume and I am concerned about wrinkles.

Plastic surgery is too daunting for me, so I'm looking into injection procedures, and I keep finding myself drawn to fillers, which are the most popular option.
I am really curious to know how satisfied those who have actually received the fillers are!
Are people generally satisfied with the effects or changes in facial contours immediately after the procedure?
I would also like to know if there is a significant difference in satisfaction depending on the area (for example, lips, nasolabial folds, chin, forehead, etc.).
From what I hear from others, there are many reviews saying that satisfaction is highest for areas where the dimensionality is immediately enhanced, such as the forehead or lips. I am curious if it looks naturally pretty without being excessive or artificial.
I am also concerned about whether my satisfaction is maintained over time after receiving the filler treatment.
Even if it looks pretty at first, won't the shape change or become awkward later on as the filler is gradually absorbed or moves to the side?
I heard that a big advantage of hyaluronic acid-based products is that they can be dissolved if you don't like them, so I'm curious to hear reviews from those who have tried the dissolving injections.
Additionally, I would like to know if there is a significant difference in the effectiveness or duration between domestic and imported products.
I am wondering how many days of downtime, such as bruising or swelling, usually need to be expected for the results to look natural after the procedure.