...for a given value of 'premium' they are what people claim them to be.
If, like many of those people, your only experience is the typical SOHO crap like the usual D-Link, Buffalo, and Netgear (not even mentioning the no-name crap) it is a vastly premium product set with some big-ticket features for a low price, and you can run the server end on a raspberry pi. Most of those people will never see a big wireless installation.