Only issue I have with 1Password is their Android app. It works great most of the time, except that they didn't implement the Android autofill stuff correctly.
It sees Firefox as a browser and offers autofill suggestions for the websites just fine, but apparently Fennec isn't on their allowed browser list or something. It just sees Fennec as another android app and doesn't offer logins for the website I'm on, just ones that I've linked to the Fennec app.