[gumby]

The backup case is of the same scale as the original poster's situation.

My team found it unreliable for much smaller directories as well. 6 people, 6 independently unhappy with it. It was only on a conference call when we realized we were looking at different copies of files that we all complained of the same symptoms. Anecdote rather than data, I admit, but it's disturbing that each of us silently assumed we were the only ones having trouble.

(FWIW we stuck to google for realtime shared docs, but moved to DB for general file storage, including spreadsheets and presentations)