Currently I try to centralize WLAN with Ubiquiti, to complete coverage, I have distributed four access point in the house.
A central identification with RADIUS would put the whole project on a new level.
Some time ago I have with Ubuntu and Radius (2) and the WPA2 somewhat expiermenitert and it worked wonderfully.
This is my HowTo: http://wiki.pratznschutz.com/index.php/RADIUS_with_Samba4_AD_und_MSCHAPv2
It is not an economic constraint behind it!
Whether the identification is done with SSSD or in AD, I believe has little impact.
In addition, I am working in an aid organization and there are always problems with the central WLAN password.
If it works with me at home with 12 users I want this system to roll out there.
Greetings from the snow!