Former ATT here... was problematic in Penn station... Imagine, somewhere that thousands of people need to make contact when things go bad, and poor service there!

Verizon didn't work overseas without huge charges...

So our switch was made to T-Mobile.... At an Ohio farm, ATT delivered nothing.. T-Mobile was perfect. But even now, some patches in Pennsylvania (turnpike and I80, in mountains) go dark. So I'd test them in the far reaches of NJ. (Sussex, especially) Essex, flawless. Passaic, also, south of Wayne. ( Little use north of there)

Unlimited data.... Also, cheaper than VZ... every month.