I'm 90% satisfied with mine:
* 500/500 for $60, can go up 5gbps symmetrical if I wanted
* While not advertised as static, I've had the same IPv4 IP since I checked a year ago
* No significant downtime
* The provided router has a single 2.5gbps port and has 802.11ax
Disatisfied:
* The ONT and gateway is a Nokia BGW320 provided by AT&T that I must have. I cannot provide my own. There are some work-arounds with pfsense [1] and bridging 802.1X traffic.
* The Nokia ONT/Gateway kinda sucks and it's ARP tables fill up and the general networking of it are fairly basic and what you'd expect for some $30 TP-Link.
* I'm fairly confidant that AT&T uses CGNAT. I haven't been able to get Plex remote access to work correctly.
[1] https://github.com/MonkWho/pfatt