I was able to get the Tab E, totally free. Didn't even have to add a Data plan. Was able to get the free 200MB Data SIM. All I had to pay was the tax, which ended up being $14.04. BTW, I called in for the promo two days after ordering my Note 7.
No hidden fees (as some pointed out in the waiting room thread). I've been w T-Mo for so long, I know how they work. They have a follow up set in the system, so the full price is subtracted after the first billing cycle. Again, no Data Plan (not like I will be using it places where wi-fi won't be available). Not to mention, the 4GB (2GB + 2GB) of free tethering I have on mine and my wife's phone.
I know it's not a beast or anything, but hey, for 14 bucks, you can't go wrong, Perfect for my kids and their videos. T-Mobile has been good to me!