We're on Fibre Optic, and this is much better than we normally ever got.
But Sky has been so unbelievably shakey at times with it's connection, where it can just drop out entirely.
Plus our WiFi is terrible in the house and has numerous deadspots and drops out even more often.
Which is bad news, because there are only 4 things in the house with a wired connection, my PC and 2 Xbox 306's, plus our SkyBox.
Everything else, including our 2 laptops, 3rd Xbox, mobiles phones, 4 tablets, 3DS, iPods and other such items are all stuck on WiFi which can just crap out.