I have US Cellular and I got 5GB because we were camping at the beach and my husband needed to do some work while we were down there which usually means a lot of time on the web. Once everything was bought and paid for, I was told that if we leave their area and we were in roaming, we would only have 250MB and guess what, the beach was roaming. Does your plans do this, too?
I have been thinking of Verizon but until my husband retires, US Cellular is the only one to get coverage in the hills and forests here in Washington state. I almost want to keep him on US Cellular and I will switch to Verizon. :)