Went in for my upgrade and was seriously overcharged. Their 14-day "trial" comes with a $35 restocking fee, which is never disclosed. I have been on the phone for over two hours between Verizon and Diamond Wireless, and the whole thing is a joke. I was "upsold" a jet pack in order to "help" me on my bill, which I didn't even want, and I was literally hassled by the sales guy when I returned it. After receiving my bill with Verizon, I found out they never even cancelled the service--even though they are in possession of the jet pack. To top it off, Verizon has no specifics on how they sell the service--just a total bill.
I disagree with previous posters that the sales guys there do not lie--that's all they did from the time I walked up to the kiosk. I now have an almost $500 bill from their ridiculousness, and the call center was nothing but combative and rude when trying to handle the issue.