Hi. For the last several months, my data service in downtown Pittsburgh, PA, during the day has gotten progressively worse. Apps can take a really long time to load, even just Accuweather. It's fine when I'm in my office after 6pm, but during the day it is really slow. I sit next to a window, so my signal strength is fine. Sometimes LTE disappears and it just says 3G. I have an iPhone 5S runing iOS 9.2. I don't think the phone is the problem, I think extra capacity is needed in this area. My building does not have WiFi, so I don't have that option.