Glass fiber. ~30$/month. In theory 10Mbps down, 2Mbps/up, but (as I had heard from friends subscribing to this cheapest package available) in practice it is way faster. These days I tend to get 100-120Mbps down and generally around 10 Mbps/up. This year the service was interrupted for two hours, last year for half a day during a power failure that affected my place as well -- didn't quite notice that inconvenience
