The user experience with extensions for different browsers (Chrome, Firefox, Safari) is inconsistent. Menus look and behave differently. Some options are present (and turned on by default) in one browser's extension and absent in another. For example, Firefox's extension opens the vault every time you log in unless you uncheck a box, so if you're at a password field ready to login, LastPass decides to just get in your way.

But by far the most infuriating part for me has been the iOS app. For the past few months this is what I have to go through to use it:

1.) Open app

2.) Enter password

3.) Scan fingerprint

4.) Start looking for what I want to find

5.) App logs me out after about 30 seconds for no perceivable reason

6.) Enter password

7.) Scan fingerprint

8.) I'm now logged in, but the vault is completely empty

9.) Force close the app

10.) Open the app

11.) Enter password

12.) Scan fingerprint

13.) Finally get what I want

I really do want to switch to something else, preferably self hosted, but I haven't been able to set aside the time to do the research and export/import what I have in LastPass currently.