I have been using the Verizon 2200 MIFI stand alone unit for over five years now with no problems whatsoever. The JETPACk uses the same MIFI units...
My Verizon plan is the older 3GB well secured dataplan which works great for us to pay bills online, check our emails, chat with the kids, and do some WEB searches. All of our devices that have WIFI capability logs in just fine. If you want to get into using more data I suggest the MILLENICOM 20GB plan that uses the VERIZON NETWORK would be the way to.
Like said above... If you get Verizon Cell Phone service you will get Verizon Internet connections.
Roy Ken