nemo wrote:

Both ISPs offer fibre broadband[1] at 17,

That's copper

38 and 76Mb, using the same
wires and fibres, so the "faster and more reliable" claim is bullsh*t.

There is one recently introduced difference with Plusnet, their 38Mbps
service had the upload speed cut from 10Mbps to 2Mbps - maybe they think
it will mean anyone who wants fast uploads will chose the 76/20Mbps
service - to me it's a backwards step.