Long story short, an AT&T rep offered me a $20.00 UDP for my iPad last Summer. It worked for a few months then I found that the hotspot button kept disappearing every 2-3 weeks and my download speeds would go from 50-70+ Mbps down to 3. I had to keep calling in to have it "fixed". Today I was told the reason this keeps happening is because that plan isn't compatible with my iPhone's old UDP. So in the end I might end up moving my devices to a modern shared data plan. I haven't looked at them in while but if I remember right, one of the current plans offers 22GB and a 10G LTE personal hotspot for each device. I usually only use a total of 15-18GB total per month so I probably wouldn't notice a difference. Well... except for having to pay more for the same thing I had before. So does anyone regret giving up their old plan?