On Speedtest.net I got 508.18 Mbps down and 72.45 Mbps up.
Fast.com gave me 530 Mbps down and 73 Mbps. Fast.com always gives higher results for some unknown reason.
tbb's own speedtest gave 412 Mbps down and 72.4 Mbps up.
Having said this, the connection seems to wildly fluctuate at times, but I guess there are a number of factors involved.
Also, Smart Hub 2 has not updated to latest firmware yet, still on version 15. Hopefully, after update to the latest firmware, speeds might settle down a bit.