I'm curious as to why people have had such bad ownCloud experiences? I've had it set up on my servers for 12+ months now and am really enjoying the experience. Could someone please explain further?

Also happy owncloud user for over a year; though i mainly use it for calendar+contacts (both synced with both phone and emacs) and auto-backups of pictures I take with my phone.

Documents and such I tend to keep in various public or private git repos; habits die hard.

My issue with ownCloud is that it lacks partial (differential) updates. Change a bit in a file and have a whole one re-uploaded.

Also, security track combined with the implementation language scare me to the extent of not really willing to expose the whole thing to the Internet. Just being superstitious here.

I tried Owncloud for a while and was disappointed. Ended up using Syncdocs (http://syncdocs.com) to do end-to-end encryption to Google Drive. The main advantage of this was the versioning is done by Google and fast access from anywhere.

I'll be taking a look at Seafile now, looks promising.