I have become a huge fan of the Verizon wireless network after a 2,300-mile to and from trip to Florida that had me camping out in some pretty remote spots in the Appalachian mountains going down and coming back.
I never lost 3g connectivity. Ever. Which is much more than I can say about my old AT&T days.
But better than that, I was pleasantly surprised by the 4g connectivity I got on my iPad.
The route took me on interstates and back roads in Michigan, Ohio, Kentucky, Tennessee, Georgia, Alabama and the Emerald Coast of Florida’s panhandle. As far as I was aware, whenever I checked, I was never out of VZW data connectivity for the iPad or my iPhone.
In a very rural Tennessee state park south of Nashville, I used the iPad and the strong 4g connection to set up a private hot spot for my MacBook Pro laptop. From a picnic table, I streamed live Easter Sunday church services and later used the hotspot to update a bunch of websites I run.
Couldn’t be happier with Verizon. 
