So I tried using the wall mount and poe adapter to install an eero and it turned into a nightmare.

Spent hours trying to setup an EERO using the wall mount. After a while of not getting any where we called tech support. We had a flashing yellow light on the unit. Tech support said this wasnt possible, it doesnt do that.  It must be white and is ready to setup. NO IT WAS NOT. Later that night after searching online I see that flashing yellow means an incompatible power supply.... So it is an error code and Tech support said it couldnt even do that. 

Now Im using the wall bracket with a poe inserter. So i try a different one, no good. I try 3 different ones and a poe switch, no good. I take it back to my distributor and try 2 other wall mounts and all do the same thing. But it will power off of its regular power supply so they will not exchange the main router. 
So now it sits on a dresser with the cable hanging down the wall. We have about 14 hours into a 3 hour job. Im unhappy, The distributor is unhappy and the client is unhappy.   

Third time I have tried to use this product and third problem. It NEVER installs easily.