Grey Ghost:
This looks intriguing, but I was bitten by the fraudulent vendors reprogramming a MiFi 2200 on Verizon for this type of service, without Verizon's consent. Eventually, I just had to chuck it and get something through a local Verizon retailer, for $50 a month for 5GB.
Your device SEEMS to be something different than Verizon, and the other guys wanted $140, so hopefully yours is not the fraudulent Verizon"deal". I would do some websearch on the company/device/service and see if there are any user comments out there.
But thanks for the heads up about a possible great deal!!!