How satisfied were you with the fillers?

I am considering fillers because my nasolabial folds seem to be deepening as I get older. I am stressed because the corners of my mouth look more saggy in photos. I became interested because I heard fillers provide immediate results, but now that I am actually about to get the procedure, I am worried that it might look unnatural. If there are many people who have seen natural improvements without looking excessive, I would like to take the plunge. I am particularly curious about the satisfaction levels of those who have received fillers for their nasolabial folds or cheeks. I would also like to know how long the effects last and whether the pain is tolerable. I would like to hear about actual experiences regarding whether daily activities are possible immediately after the procedure and how long the swelling lasts. Since different clinics use various products, I would appreciate your advice on what criteria to use when choosing one. I want to achieve a youthful look without it looking too obvious, so I am waiting for honest reviews from those who have experience.