We bought the MiFi last year with the idea that we would replace our cable. Up to that time we were using our Smart phone and connecting it to our computer while on the road, works better than our MiFi unit. Ours is 4G and if you are in a location that is near 4G but not close enough it shuts down. The 3G and 4G for some reason don't like each other I've called Verison and they've not been a lot of help. That problem is at our home location, they tell me that the 4G service is just a few miles away. We have a 2 year contract and I think at the end of it we will cancel it.