Ive used the App for over 4 years. No surprises in its performance and it synchronizes beautifully with my 2 other devices. When I had a hard drive crash on one device and recovered on the new drive 1Password synchronized perfectly picking up any changes. When it comes to the cost of a password App, I measure performance and cost of an App as an economic cost to what the value of the damage that can can happen. I manage over 200 passwords. Four Router passwords, software licenses, multiple passport data, bank accounts, key family information, etc. On my one device my most active Apps are mail, texting then 1 Password. I have total confidence in 1Password in providing me 1 key aspect of performance and protection.