It's the "stringing it all together" that could be problematic.
If you have multiple clients (desktop/cellphone) modifying the same entry (or even different entries in the same "database" ). You need something smart enough to gracefully handle this or atleast tell you about it.
I did the whole "syncing" KeePass and it was functional, but it also meant I needed to handle conflicts - which was annoying. I switched and really appreciate the whole "it just works" with self-hosted bitwarden.
Facebook, now it's your turn....