I'm currently on Verizon and thought I'd give T-Mobile a try. I picked up a Nexus 5 and got it activated. The signal was ok-ish at home, much like my Verizon signal, but at work the T-Mobile signal barely functions while Verizon is super strong. I only work a couple of miles from home and I'm on a high floor of a building instead of being on the ground at my house, so there's really no reason the signal should get worse.
Is this some sort of Nexus 5 problem or a general T-Mobile problem? Not sure it matters either way since I may be returning this phone if it won't function at the place I spend the majority of my time...