Both LastPass and 1Password failed to save some generated passwords for me, causing too many trips to forgot password.
LastPass would sometimes post to the wrong login form.
1Password got confused a couple of times between 'Logins' and 'Accounts'.
With 1Password, when I'm away from my computer, I have to use my phone to read my passwords. If my phone dies (fairly common) I have to install the password manager (not always possible).
With LastPass I can access their web interface--but experienced too many of the issues above. Plus I am a little nervous about a 3rd party having that much power.
I'm sure all of this was my fault, but the end result was I discovered many hidden costs and it felt like I was fighting against them.