I need to sync files both ways between them as either may be used to add files, mainly to my music collection which currently is about 650GB, but also for backups of other data such as recording production sessions. Both are on the same network via wifi. I considered rsync which I have always used for backups to external drives but it seems more suited for one way transfers and needs ssh or similar over network.
Then a search revealed Syncthing which seems like it could be suitable. Setup looks easy with only firewall settings to consider. The FAQ mentions things that are not synced which hopefully are not an issue:
Directory Modification Times (not preserved)
So my questions are - has anyone experience using Syncthing? Does it look like the best tool for the job? It's open source and available in repos for Debian and Arch.