I have been looking to move away from 1Password and did look into this. The thing that prevented me from doing so is that if someone got access to your AppleID (through phishing or social engineering), it allows them to essentially take control of your entire online presence. Right now, I try to keep the single point failures to a minimum (ie don't keep Apple ID in password manager). Is this a concern that's worth thinking about or am I just shifting the problem from one place to another?