I ran across a most unusual router review today, by Daniel Aleksandersen.
For one thing, it was not a review of a specific model (though the author uses an Asus RT-AC87U), instead it reviewed ASUSWRT, the stock firmware (router operating system) used in Asus routers. Think of it as a review of General Motors rather than the Buick Regal. As such, there was none of the usual focus on Wi-Fi speed and range.
And, while most reviews are written after a brief testing period, it was obvious that Aleksandersen has lived with his router for a long time.