I had 4G working with slow/intermittent loss of connection at my home during storm, 3G was non-existent (says my wife with the iPhone 4S), and voice calls were hit & miss (sometimes did not ring, or no/one-way audio).
VZ will be HUGE dicks they will charge you overage for this month considering the situation.
They will charge. They charged me for my overages with Irene and with the snowstorm. I get 5Gb per month. My usage is almost always less than 1Gb, except with the storms. -- NOTHING justifies terrorism. We don't negotiate with terrorists. Those that support terrorists are terrorists.