I worked at Apple for 21 years in Comms QA and I had good times working with the AirPort base station guys. The tower AirPort Extreme was a great unit and I still have one brand new that I bought when I heard Apple was ending production. It doesn’t support all of the current bells and whistles, but it was just a good, solid unit. Sadly, the base station team has been scattered to the winds, but I memba.