The main issues with CF tend to be install related, assuming you don’t need a new ONT, it should be a simple process. The next issue tends to be the ISP, lets be honest, March wasn’t a great month for Yayzi, migrations were being done in batches and in the middle of that the old transit provider went down and 40% of its users were off for 38hrs upwards. No getting around it, that wasn’t fun. Moving network resulted in new ranges, those IP ranges came with the need to update the geo-location data and each database takes as long as it wants to push updates, and much like DNS, those updates take time to propagate to content and service providers, but it’s a one off process. The other issue is static IP’s haven’t been static for many, for some thats a pita, for others it’s unimportant, but it should be resolved today from what has been posted.
So what about speeds? Well I can saturate my full profile speed easily whenever I like as long as the remote server is capable. Latency is reasonable for fibre (thats better than DOCSIS etc. but not the low single digits you may hope for, but those down south do seemingly get low single digits - its been said that a Manchester presence is on the roadmap to be brought online which may help with that. Routing and peering seems reasonable and issues are investigated.
Support is either via email/ticket, community based forum or whatsapp. Does this work OK? Pretty much, but it will reach a point where it doesn’t scale anymore ‘as is’. That said if any ISP with a phone line has an outage, good luck getting through. CityFibre also aren’t the best at communicating planned works, we had a brief outage that affected all? CF ISP’s a few days back. That said you are getting personal support from an actual human, likely the same human on an ongoing basis, normally thats rare/expensive. Downside is - as I understand it at present - effectively a single point of failure. That said Aquiss runs with a low head count and the support is also first rate, similar with A&A who have a relatively low head count, if asking something Liam doesn’t know, sometimes you don’t get an answer quickly or at all.
Billing is fine as long as nothing goes wrong, if it does, the manual intervention, the result is often not as intended. Eg I had a bill generated and the invoice cancelled after install issues - that weren’t Yayzi’s fault - I was assured the money wouldn’t take, but it still went. It wasn’t an issue for me personally, but that could have made a mess of someones finances if they were on a tight budget.
So, is moving to Yayzi something I absolutely recommend? That depends on your needs and expectations. After working in the industry, I have seen worse and paid more for it, i’ve also seen better and paid even more for the privilege, the thing that I personally like is you can see things improving and the open and honest dialogue when things go wrong is appreciated. The price point is reasonable for what is on offer and Yayzi have promised no price rises for 3 years, so even out of contract unless there are repeats of the ‘38 hour incident’ I doubt i’d move, even if it meant a slightly faster package or saving a pound or two. If I absolutely had to rely on my connection for work or similar? Possibly less so at this stage, but I would be paying for a business service with a priority faults response, failover and guaranteed compensation in that case, not a residential service.
Hope this helps give a little context to some of the things you read, with other ISP’s you aren’t given an official forum to be able to discuss and raise issues. If you want specific ping times, you’re better off providing specific destinations/servers.