Hey. What does this give me that I can't get from just having a mercurial repository which has a bunch of clones and each clone pushes to the others when something changes?
The other comments are quite explanatory--you should read them. What it gives you is "instant" syncing between multiple computers, and without a centralized online cloud (like Dropbox). So it's a good fit for: non techies who need sync, or situations where you don't want to concern yourself with whether you've synced your repo or not (it does it for you).
