Yep, YMMV. It's a postcode lottery!
I'm lucky - after years of pretty crap service, promises of Fibre (which eventually reached our exchange in the next village, but not our village!). But sometimes it's worth waiting. A couple of years they got round to us, and because the local cabling is pretty crap they went straight to FTTP. I went wild and went for a souped-up package, and I have a fairly stable 300/45Mb connection, plus landline, anytime calls and mobile for about £75/month. I think the guarantee is 150Mbps down.
Is that what Corbyn will be giving everyone? If not, how much extra will I have to pay to get the same as I have now?
It's a nice idea, but I'm not sure it's the best use of an extra £15-20Bn. Obviously if he axes HS2, Trident and Brexit then it will just be small change!