Yes, the current copper arrives in a duct, and Gigaclear and Swish have been in the area.
I think I got a leaflet through the door from one of them, saw no ISPs I recognised on the list of those available, so binned it.
I have a Zen fixed price for life contract currently so would need to be convinced I needed the extra speed to switch anyway, although ditching the shitty VDSL noise would be nice. That's more a problem of my neighbours not switching than me, however. 
You HAM boyz. ADSL/VDSL is like high voltage power lines to you
Pre register interest in Gigaclear does tend to get a very good price offer when they finally allow ordering. Hence I'm getting £30 a month off.
My Zen is also fixed for life, although I suspect they have a convenient get out clause in that copper phones lines are going, and my contract includes a copper phne line with Zen. I will probably recontract the internet part when Openreach pull their finger out and provide FTTP here, possibly later this year.
Not sure what to do when OPenreach do do it, just go for the highest speed available (currently 900d/100u due Openreach's short sighted decision to use GPON, but new networks should be about to get 1800d/200u*, still based on GPON). Or just get a cheap FTTP through Zen and also keep one of the altnets - once you've had a fast upload, its hard to give it up if you use any upload bandwidth...
...when I had the 900Mb service, it was quicker to use OneDrive to copy filies between PCs, rather than USB sticks. It was the same speed to use OneDrive as it was to copy files across my LAN
. And Youtube uploads dropped from about 3hrs to under 3m
(Though that might get reduced to 120u, again due to stupid decisions around the utterly out of date GPON - GPON allows 2.5Gb download, 1.25Gb upload, shared by all users on that node, usually around 64 - 128 homes. Altnets tend to use XGS-PON)
