I have think about use it, but still it fail if the data is relational. I have a invoice app, and none of the NOSQL I have evaluated guarantee the order of the updates or have atomic updates (need both). Is not fun if a invoice update partially or the related tables get out of sync.

In the other hand, I'm stuck in how sync with a relational model :(

So, it sync well and broke my relations and transactions or it sync hard but keep my data correct.