I can't imagine it not working at 50.
I am currently with Comcast on their 75mbps plan, and my rates are about to go up. I'm considering switching to AT&T, but it would be a reduction in speed (albeit with a reduction in monthly cost). They offer a 50mbps plan for way cheaper, but my concern is that with all of my connected devices and the potential to work from home remotely, 50mbps won't be enough. I'd like to switch to AT&T's 50mbps for internet only and snag PlayStation Vue for my cable.
I also recently upgraded my modem and router to a Netgear CM700 modem and Nighthawk 1750 router-those seem to be fine handling multiple devices. I have the following connected at my house:
Amazon Echo and Dot
2 cell phones
I realize this is a lot of information, but hopefully someone can tell me if I'm way off base in thinking I should be fine moving down a bit in speed. I hate Comcast, but I have no experience with AT&T and haven't heard people singing their praises either.