I have a T-Mobile hotspot. Location is everything and I am blocks from a TMO tower. The problem for me IS the interstate. I can get 8 Mbps down late night but it is unusable during rush hour. The same happens with Sprint here but not AT&T. I do find TMO's 3G better than Sprints.
Make sure you get a phone that is band 12 capable. In some states like Colorado and Michigan, band 12 is what TMO is deploying to cover large areas.
As far as binge on, I had them shut it off. The signal is rarely strong enough for video here and most all of the services are pay or you have to have a subscription to a cable or dish company. Since our subscription is with the dish we carry, it's easier, faster and better quality to watch it on that. Just having Binge on running will throttle all video.
So if you can, borrow, rent or get a one month plan to make sure the signal is good all day where you need it to be. I love my hotspot except for between the hours of 8 and 10 am, or 4 to 7 pm. Then I use AT&T.