Don't forget the non existent and poor and customer service/support. They're more difficult to get in touch with and get things done compared to be on AT&T proper.
Can't be any worse than T-Mobile's worst-in-the-buisness customer service
http://www.tmonews.com/2013/08/newe...ow-t-mobile-still-has-customer-service-needs/

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It's more like you get free internet on your iPad for 15 minutes each month until you burn through the 200MB of data. I'm not saying the 200MB / month isn't good but many people are over hyping it.
With all that EDGE out there, it's almost a month's worth of data!