Anyone Using 5G Routers for Internet?

Thinking of switching to 5G routers instead of broadband. The data plans are reasonable ($50/month) and the service seems like it would be more reliable through storms and outages. 

Any drawbacks I’m not considering? I would still need to subscribe to a streaming service for cable tv, so cost savings wouldnt be much (or a wash), but otherwise it seems like it might be a viable alternative?