I love the Charge and have had it since its launch. But there is one very serios issue this phone has and I can reproduce it on virtually any Charge I've played with at any Verizon store I've visited on Long Island.
When the phone drops from a 4G to a 3G signal, the phone loses ALL data connectivity. You get a yellow box that opens up in the ceneter saying 'Data Connectivity Problem'. The 4G speeds are great, but being cut off from 3G data is a horrible situation. I've demonstrated the issue to the Verizon tech people at the stores, and they seem to be genuinely surprised.
I've had my phone swapped out and the new one is identical. I've spoken to upper level tech support at Verizon and they're researching the issue. It's not clear if this a tower issue where the phones are not told how to properly switch from 4G to 3G, or a phone software issue.
If you live in an area where you're never out of a 4G area, you'll never see this issue. But I can tell you if you have it, it's a killer problem.