Barely usable. Constantly not syncing with browser, so I can't add a password in the app and then use it in the browser. Tried lock/unlock, no luck. Have to force quit both my browser and the app just to get it to recognize the change/update. No "Force Sync" option. Last several times that I attempted to "Save in 1Password" a login, the attempt to save it fails. Have to put it in, manually, to the app. Then - you guessed it - the browser has no clue about the addition. Lots of force quits, all over again. It's a nice system, WHEN IT WORKS, but the issue is that it doesn't. Moving to something else.