Ohh it's very reliable. I only had one problem with it, my plant grew in front of it and I just needed to move the plant and it was fine. But if something obstructs the view to the tower it can mess with it. Comcast was always variable, but 5G Verizon I am almost always having 300 + Mbps with the higher package (400 + Mbps) and that's also with a somewhat bad connection to the tower (just in range and sight). Comcast barely got this with a 1Gb package. I'd try it out, Verizon had some good promos, they will even let you test it for a month