Add my thoughts. I get it. This is a forum for all things Internet. So the kind of user here is going to be checking the max speeds they get. When running on FTTC the main factor for speed restriction was the distance from the optical node / exchange.
Admittedly, I got a bit giddy when I could switch from FTTC to FTTP. My previous experience of full fibre was with my work where I dealt with PTP connections / leased lines / uncontended bandwidth. I had to adjust my expectations for FTTP.
The headline figures are the max speeds or what your connection can "burst" up. I have 145Mbps with Plusnet. That's the name of the package, but I am guaranteed 80Mbps download. It can burst to 145Mbps. 30Mbps is estimated. I get 28Mbps approx.
At present, in reality, I consistenly get 145Mbps, as am not really not contending with other users. I would imagine the take up is low so far in my area as it is still relatively new. Honestly though, I don't think I have or will ever max out the download speed. Data is burstly by nature, so most of the time (even when working from home, browsing internet, streaming) the download is low.
I / everyone is at the mercy of what the last mile provider decides as their contention ratio I guess?
I appreciate some people have had woes with old Virgin Media last mile infrastrucutre, so are looking / hoping for better. The new fibre network will offer that, but I would need to adjust your expectations accordingly. Where you may have seen slow downs due to contention. That may still happen on new infrastructure (depending on what peak speed you pay for) but I would say not as bad (depending on VM policy to contention). You'll get a min speed guarantee and better ping more stable connection. Just don't confused going full fibre as a leased line with uncontended bandwidth.
So sounds good VM is building their own last mile full fibre, let's hope they don't spoil it with whatever policies they implement.
EDITTED - As realised the explanation of my FTTP package made no sense - hopefully does now.