I know a few people that have completed it and results vary. Some had the cancer stay away for a well over a year Other people have had it come back.

It is a known fact that 1/3 of the people get really good results 1/3 of the people get OK results and 1/3 of the people get no results at all.

One thing you should be aware of are Pluvicto genetic issues
RB1, PTen, TP53 are Pluvicto resistant
ATM & BRCA work better with Pluvicto

If you got a hereditary, genetic test You would know if you have any of these. Has it been offered to you by a doctor? You can get it done free with the below link, if you live in the United States. Do not check the box that you want your doctor involved or they won’t send you the kit until they get in contact with your doctor. It takes about three weeks to get the results and then a genetic counselor will call you.
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Prostatecancerpromise.org

You get a somatic Genetic test using blood or tissue to find out whether or not you have one of those genetic issues now. Things do change, and some people do get these genetic anomalies. Ask your doctor about this.

In response to jay0013:
I was a Pluvicto clinical trial patient 2021-22 and responded remarkably well. It was a full 22 months after the final treatment before my PSA began to rise again and tumor growth was detected. The only side effects (other than being radioactive) were a day or two of feeling a little funky from the Lu-177 and some, but minor fatigue toward the end of the 6th treatment.
I am now repeating the 6 treatments (completed #4 of 6) via a special arrangement with Novartis Pharmaceutical and Medicare. Fortunately, it is working incredibly well once again. It has saved my life, twice and I'm leading a virtually normal, active life. Yes, it will return at some point, but considering I'm in my 10th year of metastatic castration-resistant stage 4 prostate cancer, it's wonderful to keep kicking the can down the road a couple of years with each round of treatments.
Stay informed, do your homework and don't give up.