I am using Enpass for about 4 Month now (coming from Keepass) and mostly I am very happy with it, because I can run Enpass nativ on all my major operating systems (OS X, iOS and Windows).
But the big negative thing for me is, that there is no keyfile support. I synchronize my database with an ownCloud system, running on a public server using WebDAV. I have SSL and server-side encryption running, but still I'm not feeling to well about it, since my Enpass database has not just my whole logins stored, but the ones of my wife and my son as well.
I would feel a whole lot better if an additional keyfile could be added. Keepass (MiniKeepass) does that pretty well, even on iOS devices.
So I would highly recommend the keyfile integration, this would make cloud syncing much more safer ans surely a lot of people much more comfortable.