My Motorola Droids downloaded data very well at home, work and one other place that I frequently visit. The Samsung Galaxy S5 does not from the day that I bought it. I only get by by using WiFi at these three locations, and hoping for the best (i.e. spotty data connections) elsewhere. My very expensive phone (which I am quite happy with in other ways) is a big step backward in making data connections. I would think that Verizon would not sell this phone to make 4G/LTE connections.
We certainly want you to be able to get the best wireless experience from your phone. When did your data issues start with your device. Are any other services affected? What zipcode do you use the phone in?