I'm posting this as an "alert."
I have now been using Verizon’s MIFI for over a year and the Hot Spot feature of their cell phones for a couple of months. I am also a cyber professional. I travel a lot and had hoped Verizon would provide "on-the-go" internet. WRONG!!!
If you need even respectable internet service, look elsewhere. Verizon’s MIFI and HOT SPOT capability are completely unreliable! Even with 4-bars of service at locations around the country, the internet throughput often drops BELOW 1kB/sec for hours on end. That's not to say I get >100kB/sec at times ... but often NOT. DO NOT be fooled by their advertising. It’s garbage!