i have, and i agree that they've gotten really good. but my customers are still completely lost when they have to interact with theirs in any way. No matter how good the UI is, it still requires a mental model of how a router works (for example: the internet comes into your house on a wire, the box turns it into wifi, which comes out the antennas) that a lot of people just don't have.

There's an understanding that there's a box with blinky lights and without it there's no internet. You can't assume people understand anything beyond that.