I use a gl.inet Mango for work. I’m a field tech for industrial machines, I connect the router to the machine’s LAN (if it doesn’t have a switch, the two ports on the Mango come in handy, I just insert it in an existing connection) and I have wireless to the PLCs, allowing me to walk around the installation to check things with my laptop.

Bonus point for the wifi client that allows me to connect to a customer’s wifi or my phone’s hotspot and also have internet on my laptop for mails, etc.

The other day I used it to connect to three different subnets on three machines, one on one port, and two on the other with a switch, again with wifi client for internet.