My understanding that BW have superior auto-fill features and wide support for different OS. Keepass don't have auto-fill for browsers, Keepass have to rely on third-party to provide the auto fill features and various apps for all variety of OS.
I'm a Keepass user since 2006 and never had a problem with them. My database is saved in OneDrive and always keep local copy in my system. If OneDrive is down, my local copy is always there for me.