We have three TP-Link CPE510 (v1) communicating in bridge-mode over short distances (~500m) to connect our three buildings to our LAN. We use the stock TP-Link firmware (latest version). Everything is working fine and I really have no real need to replace the stock firmware other than to make the CPE510's have the same firmware (openWRT) as our router and Access Points.
Would there be any real advantage to replacing the stock (PHAROS) firmware with openWRT?