My setup:
Kabel BW 125Mbits line
Kabel BW Modem (Gigabit) with PC and Nas
Archer C2 as a wireless router (connected via LAN to the modem)
One caveat you have but in my setup, you can not use the host network, is for me not a problem. The reach of the 5GHz network is not very exhilarating. But lies at the frequency band and not the router.
Top Empfhelung as wireless router. Finally, I have also in the high-speed WLAN. Purchase recommendation