What issues were you getting?
Very bad Wi-Fi, very sluggish GUI, no IPv6, no place to report bugs / issues to, too locked down, basically loads of reasons why I stopped using the Smart Hub.
Sadly I am very limited to what router I can use due to their throughput between the WAN and LAN Ports.
The only issue that I have with this router is it suffers with buffer bloat on the upload.
But I could install a custom WRT firmware which would fix that, just not been bothered to do that yet.