Don’t know the Pro term. You’re in Europe, right? Maybe it’s regional branding.
I have the original Eero, they are now on Gen 2.
I have six of them to cover the house. Raved about it in March 2016.
A wonderful product. Does what it says on the tin.
Maybe the best thing is that it has no settings. No control UI. Means you can’t screw it up.