There is a reason why we don't tend to use these technologies in a corporate setting, which is they are largely pants, the whole mesh network thing is a realm of conflicting standards and half hearted implementations which work ok in a lab but fail to live up to real world conditions.
I went with the quite cheap mini access points from mikrotik (less than 30 quid each) and a single non wifi router, the router manages all the access points and you can roam happily between them, the downside is you need to run some cable about the place, however as the AP's are power over ethernet they at least don't need sockets.
Frankly anything doing power over the mains should be fired into the sun, they produce so much rf pollution they screw over some of the amateur radio bands chronically, producing so much noise they technically should be banned, I know a couple of neighbours have got them because I have to listen through the noise of them on 40m.