For those of you who have had fillers, are you really satisfied with the natural results?

Lately, whenever I look in the mirror, I feel like my face looks a bit flatter than before, so I am looking into filler treatments.
I want a natural boost in volume rather than a drastic change.
It wasn't easy to judge the actual results just by looking at the photos.
So, I am writing to inquire because I am curious about the experiences of those who have actually received it.

I am especially curious about how long the actual effects last after getting fillers.
There are also stories that it looks pretty right after the procedure but fades quickly over time.
There are reviews saying it lasts longer than expected, so I would like to know what the typical case is.
I'm curious if there is a big difference depending on the area as well.
If you are getting fillers for the first time, you might also wonder which area to start on for a natural look.

Another thing I am curious about is the advantages.
I've heard a lot of people say that you can resume daily life because the recovery period isn't as long as surgery.
I would also like to know if there is actually any discomfort due to swelling or bruising.
Do you happen to know any precautions to take after a filler procedure, or any helpful tips for getting one for the first time?
It would be really helpful if you could share this information as well.

Above all, what I am most curious about is the satisfaction level of those who have received the procedure.
Were you satisfied with the results commensurate with the cost?
Or, I would like to hear your honest feedback on whether there were any aspects that were more disappointing than expected.
I don't want a style that is too obvious, and
I am expecting a natural change, just enough that those around me will notice that I look prettier.