I too am happy that testing is no longer required - mainly because the Walgreens where we were getting tested for the last 5 cruises is no longer testing for travel.
I had a total of 11 people in my family (including me) that took cruises in June on 3 different ships. We are all vaccinated. Out of the 11, nine (including me) tested positive after the cruises. Three of us had pretty bad flu-like symptoms for a few days, the rest were either asymptomatic or had cold-like symptoms.
I will be getting the next booster that is supposed to come out next month and have 6 cruises booked from now until December of next year. I am not concerned for myself, but if I were not vaccinated I would definitely be a bit concerned, especially if I were over 65 or had prior health issues. The virus is alive and well on cruises where the vast majority of the passengers were vaccinated and all tested negative before the cruise. My thought is that the unvaccinated have every right not to be vaccinated - they know the risk and if they want to take the risk, more power to them. People are still dying from this virus everyday - hopefully that won't happen to them. If it does, I hope that they don't shut down the cruise lines when their family starts blaming the cruise for not testing everyone.