Glide

We ended up with almost exactly the same synchro system in my company ! :)
We used it for 4 or 5 applications now so we encountered the several following issues:
* Synchronizing objects linked between them can be tricky, we finally oriented more in a NO-SQL way sending trees instead of lists
* With big volumes, you will want to paginate or stream some queries
* Also when the volume becomes heavy, splitting queries can help resuming in case of unexpected interruption

All worked fine for me apart when actually using the nano script:

$ nano toto

Tells:

Redirection is not supported

Seems to be a known issue