Mark - Thanks for the info regarding the speeds you get at different times.
a 1000GB cap is OK, but how come major ADSL / VDSL companies can offer completely unlimited data, and hugely profitable mobile networks like EE won't? Actually, they can but want users to pay a higher price for it by moving them to a commercial plan.
I expect this will change over the next few years though, as 5G (with upgrades to capacity including MIMO) is rolled out and it becomes possible to blow through data caps within a few days.
I think it's worth pointing out that whenever any user downloads (even quite a small download), it could have an effect on other users if there is insufficient capacity in an area and if many users are downloading / uploading simultaneously. This can be solved with network upgrades and additional spectrum as demand increases.
I think upto 80mbps VDSL has been a bit disappointing and hasn't had sufficient investment (since ~2013) for upgrades from Openreach to make it worthwhile, such as vectoring (to address attenuation + crosstalk) and profile upgrades to increase speed.
Another factor for me, is that our ISP (Talktalk) recently tried to bump up our monthly fee, by adding fees to use the Youview box and increases to the cost of the FTTC package itself.
My home network is fine, I've tested ethernet, WI-FI and powerline and get similar performance on Wi-fi to ethernet, after some tweaking.
The main benefit to 4G could be potentially faster downloads, which would be particularly useful for downloading large games (some games are now 150GB!), which can take hours to download. A lot of people don't watch TV at all now and stream it all online, or watch videos, which also uses large amounts of data.
I'll have to do some do testing at different times to see how consistent bandwidth is on 4G.
I think most people would like FTTP (fibre connection to homes), but until then, I'd like to see what else is possible. Many people in cities can get 500mbps packages on Virgin Media, I can't see any reason why customers wouldn't want this, if they can afford the high monthly cost.