Have used it for a month and am satisfied! Uses it as the access point and has placed it centrally in the apartment (84m2, 3 rok), nice coverage on wifi in all rooms. No restart has been required. Also good to access 5 GHz and 802.11ac, my old router missed it, it only has 2.4 GHz. At 2.4 GHz I have about 15 other networks from neighbors who disturb me, sometimes they were even stronger than my own. At 5 GHz, I'm so far alone so no disturbances. I turned off the wifi on my old router.
One star in installment when I had some trouble signing in at the beginning. The login was suspended and sometimes I did not get it at all. It worked when I connected it directly to a computer with cable configured with static ip address. Also updated firmware to latest version from Zyxel's website. After that, it worked well without any problems.
2018-06-02 Still working excellent, tough 24/7 and delivering stable wifi. Has continuously updated to the latest firmware as sole measure.