Anyone using the AT&T BGW620-700 gateway?

This request is a year old. I was searching the 970 threads for other user experiences with the AT&T BGW620-700.I have one w/5G fiber service. I’ve had it for about 8 months with passthrough to a 970 and one satellite. All WiFi radios disabled on BGW and all security performed by AdvancedArmor on BGW and Armor on 970 disabled.  All this said to indicate there is a ~10% throughput reduction from BGW to 970 although not unusual with passthrough overhead on BGW.  I may switch to AP on the 970 but with 5gbs service, not noticeable.  BGW performance ~5300gbs up & down. 970 ~4700 down and ~5100 up. 970 firmware latest v12