IT does what it says on the tin; it's a password manager. However synchronisation is extra (I use sync to sync the file, and because I'm on iOS I have to manually import the file into the app).
The recommended iOS app (MiniKeepass) doesn't support Touch ID to unlock the database (a PITA with a long master password, which I already have to unlock my device), so I'm using keepass touch, which is a MiniKeepass fork, but with ads, and they've been ignoring my requests for source code (MiniKeepass is GPL).
Browser integration is a pain; you haveto install an extension to Keepass, and then to your browser, and set them up correctly. Steps are at [0]
It works, but is a lot more hassle (which as a result means I'm more likely to skip it and use an insecure password) than Lastpass was.
[0] https://addons.mozilla.org/en-GB/firefox/addon/passifox/