There's a few wireless providers which are alright, but can't offer the reliability of a fixed line service.
As we all know you can't get other fixed line providers in 01482 areas, but it's not true that KC are the cause of that. They're strictly regulated like all ISPs are for competition, the reason is simple that big ISPs don't want to be involved in Hull.
Ofcom regularly audit ISPs performance and KC is pretty much always significantly faster than the likes of BT, Sky, TalkTalk, etc. People don't realise how good the service actually is round here.
KC's fibre service, Lightstream, is absolutely streets ahead of what other providers call a fibre service, and that plays a big part in why the big ones don't bother with Hull. The technology is entirely different. In Hull its fibre from KC to your door, which means they can guarantee pretty much any speed they fancy selling. Elsewhere, fibre services are just a little bit more fibre and a little bit less copper than standard broadband services.
I'm a proper bore on this subject, I did my dissertation on it. But it irritates me seeing some of the stuff people claim about broadband and I spend most of my life explaining it to them.