Have you been happy with the Verizon iPad speeds and signal so far? I bought an AT&T iPad 2, mainly for my daily train commute from Boston to Providence and back. I've had MAJOR connection issues on that commute so far, despite AT&T's coverage map saying there are no gaps. I get data signal on about 30% of the ride. It's very frustrating. I'm going to be returning it to Best Buy tomorrow and waiting it out for a Verizon one. Thoughts?