For claiming to have the world's largest network I have not been able to get past 3 bars and haven't even seen a 4G connection in the week that I have had my iphone. I live in Phoenix and according to the map I am right in the middle of a 4G utopia that I can take no part in. Help!
Also, I have reached the data that I used on my 4S in a month in a mere 10 days on my 6 using the same apps, etc. Is that normal?