I still use 1Password 6. I love it. But I wouldn't pay for subscription. I'm really trying to keep down the number of things I subscribe to.
I use 1Password not just for login passwords (Keychain can do that) but also for confidential info; answers to security questions; passwords for sites that ask you for the 1st, 3rd, 5th etc letters of a password; client passwords; family passwords; notes about passport numbers and other financial info; printing out a full list of passwords and notes that goes in my 'if-I'm-hit-by-a-bus' safe that my family have the keys to, and so on.
As far as I'm aware, Keychain can't do any of the latter. Having a secure, regularly updated, printed list of passwords and secure notes in case of death or disaster is especially important if you have family or other responsibilities. In 1Password, all my vital info is tagged, and then every year or so, I just select / update that tag, print, put in safe, and job's done.
I also like the notifications about accounts with websites that have suffered security breaches.