I have had an enormous amount of dental work including many crowns, root canal fillings and four implants. I had two implants( premolars) about 15 years ago and they are still going strong, no problems at all - in fact I have had them so long now I have almost forgotten they are not my own teeth.
During Covid I had a tooth abscess in a back tooth and because of lack of available treatment at the time I ended up losing both that tooth and the one next to it. So last year I had two more implants with equally good results. Of course it was expensive - I paid £7000 for the two recent implants - but I am prepared to do without expensive holidays etc. in order to afford them.
My regular dentist said he would always advise implants rather than bridges if the patient could afford the treatment as a bridge will put additional strain on the neighbouring teeth and can possibly lead to further problems in the future.
I didn’t find the implant treatment at all painful compared to, say, root canal fillings which are, for me, pretty dreadful.
If you can afford the implants definitely go for it!