Using a third-party router on Verizon?

I’m on a Verizon plan that comes with a Cisco router/modem combo. I want to swap it out for something more stable with much better Wi-Fi coverage.
For instance, something like this: https://www.amazon.de/Nighthawk-R700...nder+%24200%29

Can I actually pull this off without any headaches? Are there specific ISP settings that might lock me out? Will my phone, TV, and internet all still work perfectly fine, blah blah blah... 🙂

Look, I’m no IT expert. Routers and modems have never been my thing—it's all Greek to me. 🙂

Just leave that Spark router alone and set up your new one as an access point instead.