I do not, although I use Strongbox - liked the UI a tick better. They are pretty similar feature-wise, KeePassium is a tick cheaper for the pro-tier, and sources are available. Strongbox is able to merge the DB in case of conflict. And in reality both apps are written by a single guy, so I would say it is a draw :)
I previously used MiniKeepass which has been shut down.
My grated to KyPass, which looks good on paper but syncing with Google Drive didn’t work in practice.
Now using KeePassium Pro. Very happy. Does everything I need, uses the file API for opening files and integrates well.