I recently replaced my home ADSL connection with LTE (for 20 EUR a month: https://www.yesss.at/tarifoptionen/unlimited) and get approx 2x the download bandwidth and 10x the upload bandwidth for the same price as my previous ADSL connection. Even when there's congestion (which doesn't happen a lot) it's still significantly faster than ADSL.
What about latency?
https://www.edn.com/electronics-blogs/5g-waves/4460346/5G--T...
All these latency numbers vary a lot based on connection quality. As I understand you basically need line of sight for 5G to work at its maximum frequency and will fallback to what is basically 4G when such a connection is not possible. But then again the antennas/stations for 5G should be much smaller and thus easier to deploy closer to the end users.
There are 3 sides to 5G: - eMBB: massive boradband --- high throughput, mmWaves; - URLLC: ultra reliable and low latency, for industrial applications typically; - mMTC: massive IoT. Cheap and low power.
The network can handle all 3, but as a device or user that doesn't mean you'll get all the benefits at the same time, some choice will be required. The reduced latency always has some cost impact.
Today the LTE air latency is 4-5 ms, the rest is in the core network. 5G has some air interface changes to reduce the air contribution to 1 ms, in the context of URLLC. For basic users, it'll likely be like LTE (already pretty good). There may be some general improvement if they optimize the core latency for all, but TBC.
[1] https://www.bufferbloat.net/projects/bloat/wiki/Introduction...
Streaming Netflix is a blip on the radar and effectively consumes not that much, as witnessed while I was on vacation for two weeks and binge-watched on the train (three times 7 hours didn't even cross the 5GB mark).
So if you pay 50 € per month, your provider is allowed to cap you at 50€/(7€/GB) = ~7 GB while roaming.