I started using the Caya diaphragm 7 years ago, I never got pregnant while using it and have only now needed to buy a new one. It is comfortable and easy to use, it’s never affected taste, smell or feel and it’s been very safe, serving me well. Honestly an incredible investment especially compared to many other birth control methods that have a million side effects and are far less discreet. Of course still use a condom if needing std protection, but if you’re with a long term monogamous partner, this can do the trick:)