18Mbps downstream, nice!

Very similar line-attenuation to my line (21dB down, 7.5dB up, with 31dB up/down SNR on a 2Mbps circuit), so I'd probably end up with very similar connection-speeds through BE as you have.

And yes, they purposefully run the SNR pretty low, so as to get decent speeds (pretty sure they've released a new profile for people having problems, which uses 10dB as the SNR lower-limit, to give a more stable line at a possibly slightly lower speed).