Unison was huge while I was at Amazon, but I always preferred rsync for the control (sshfs too but you had to ensure to set some flags for when you de-docked or changed wifi ap). One of the biggest gripes I had with it is thankfully fixed though (used to need same client and server version, nowadays they permit some drift assuming no breaking contractual changes).

I'd also recommend setting up some ignore rules for build artifacts, etc, which definitely increases complexity but avoids constantly syncing build artifacts you don't care about or with erroneous symlinks etc. IDK at that point I figured rsync was easier, as it's a more commonly used tool for other purposes, and I'd rather learn fewer things with huge functional overlap if given the choice.