Direct advance, this I have found in Asus RT-AC87U AC2400!
To purchase moves me in particular an indication in the article description: 180 m² signal coverage !! It should be any aware that this can only be achieved under optimal conditions. But for our house, this should be more than enough.
And indeed I myself in my room on the first floor is still very good and especially stable reception. Online gaming does so at last without annoying Laggs and Downloads load with full range of our DSL connection. The advertised QOS feature for lag-free online gaming I do not notice. I have it switched on and off for testing purposes and could not tell the difference. For safety's sake it is now, however. Even my smart TV, smart phone and tablet are now well connected. Test, I've started on the tablet a movie streaming in full HD and walked through the entire house. In any room there were problems. Even in the garden connecting to the stream was still strong enough. My goal is thus achieved.
Soon I'm going to the other features of the Asus RT-AC87U AC2400 how test the use as a file server and multimedia as well as the own cloud with AiCloud. However, this requires some training for a (at least in this respect) layman like me.
All in all, I can the ASUS RT-AC87U AC2400 give peace of mind full 5 stars. Who really needs such a strong router, to the Asus can definitely set. For the performance offered, the price is absolutely reasonable.