I even have one as second hand - so if you're interested...

The device is not bad!! Rich for the transfer rates of the ISPs completely (with me with 500 Gbps) in use. Girmeares also available with the latest Iberfläche.

The USG? I bought it five years ago. Ancient. Definitely don't buy this one now. End of support days are numbered.
It is unclear whether Ubiquiti will bring a replacement. It makes more sense to buy the Ubiquiti UniFi Dream Machine. WLAN AP/Cloud Key Gen is integrated and massively better performance.