Do you loose a router port.
With the "old" system rather the opposite, but with the new one who knows?
The "old" system supplied a custom firmware Linksys router that acted like a switch in your network. You connected it to your router and then plugged any wired devices into it - 4 ports available.
If you needed more ports you would then typically have 3 spare on your router, but they wouldn't be monitored so best to avoid except in emergencies.
Wireless traffic was monitored too.
When your network was totally idle the device would run a battery of performance tests, on a regular basis. Results are logged centrally and you have access to your own.