Rezum for benign prostatic hyperplasia (BPH)

I am 66 years old and have been diagnosed with BPH. I tried Alfuzosin unsuccessfully. My urologist recommended Urolift, but I have concerns about the procedure. Previously he had mentioned Rezum for prostates between 30 and 90 ml. Mine is 28 ml and he did not think this would be a problem. He is a younger doctor and this is a relatively new procedure. I expressed concern that since the procedure kills cells with steam would there be a danger of damaging the urethra, too much prostate, or the outer cover of the prostate. He said this would not happen. I have looked on line for resources that address this issue without success. Any assistance getting assurance that the doctor is correct is appreciated.