Thanks for the responses. What I took from them is that (as you have indeed said) 5g is not yet a viable alternative to a solid wired connection. You do wonder if long term it will replace the last mile of wire though.
Depends on your use case, if you are doing latency sensitive stuff as mentioned, say online gamer or heavy interactive graphics user like myself you need to give it some thought and at least trial it before committing, it's actually pretty good and if I had a local server for work, I'd say it would be fine, I'd reckon it is suitable for the majority who just want to stream TV and download games etc, in these scenarios its fantastic, as mentioned 50% faster bandwidth than my fibre for 25% of the cost, if you browse the web on something like an ipad or phone, you probably wouldn't even notice any latency spikes as these machines are a slow web experience anyway.