Wireless Internet folks: HELP!

[skoosiepants]

Bare with my stupidity here: How does this work? Does Verizon have to come out and install something, or do I buy my own router and they just turn something on? Can someone who's set something like this up let me know what you've gone through? Customer Service is unhelpful if you're just asking questions. It's like, sign up or eat shit. No in between. And right now I'm just sort of researching options. So. Any advice??