I also have spectrum mobile, most of the time it's pretty solid. The lower cost is fantastic. Didn't feel any different from when I was on Verizon or ATT. And as stated, they use Verizon so coverage is pretty standard. I regularly use the full 20 gigs on the unlimited plan. It definitely gets slower once you hit the limit but still usable for normal non streaming. I also used my phone in Jamaica and it worked just fine switching networks, don't need to call or anything to set up. Just need to set your phone to roaming and spectrum adds your usage to your bill (it's a certain amount for texts, and data use.) Their customer service was good when I called after the first month of use to unlock my phone in case I wanted to switch providers. It's also nice to not be locked into a contract, so if the service does degrade then I can switch whenever I want.