Travelling with my TMobile Home Internet device?

I recently just started the trial so far so good. But I'm glad I have been reading the comments. The lady at the store told me I could travel and that's what they have been telling customers in order to convince them to switch. I am glad I know this know that it is not allowed. I will be keeping my current service with Att and will just continue with phone service with T-mobile. It would have been great to travel with it since I do work from home. But I guess I will be using good old Hot Spot and it's blotchyness smh! Answer to everyone WE CAN NOT TRAVEL WITH IT THEY LIED TO US. WE WILL BE LOCKED OUT AT SOME POINT.