I recently got two enormous bills from Verizon (about $500 each month for two months in a row) because of overages and decided to move the entire family to T-Mobile. We live in the Boston, MA area. We all kept our phones - my 7 Plus, wife's 6S, and the two kids' 5S phones. The Verizon store guy said we'd have to buy all new phones if we switched to T-Mo, but that wasn't true. T-Mo swapped out the SIM cards, and we were up and running. My 7 Plus is doing great after the switch. I get LTE with fast speeds everywhere I go. My wife has no complaints on her 6S, but then again she doesn't use much data to begin with. My kids, on the other hand, are not happy. They are often on 4G or worse in places where I get LTE. I am assuming this has something to do with the fact that my 7 Plus gets more LTE bands than their 5S does. So I am thinking of putting the $750 in Visa gift cards that T-Mo is giving us for switching ($150 per line x 4 phones and an iPad) towards new phones for the kids. Does anyone know what the least expensive model would be that gets great T-Mo reception? I was thinking it would be the 6 or 6S but was hoping to get confirmation.