It is an interesting device, but how can someone actually benefit from the 2,5 Gbit WAN port? I know that SOC cannot do 2 x 2,5 NIC and USB3, so adding a second 2,5Gbit port will not be possible.
Technically having it as LAN port could see higher than 1 Gbit traffic if used with vlans and a switch. In that case you would have traffic between vlans run through that LAN port twice on different VLANs.
With 1 Gbit LAN and no wifi I do wonder how I could saturate that 2,5 Gbit WAN (with ‘useful’ traffic; You can run iPerf on the device, but I do not call that useful)?