After 24hrs of beta been flashed, everything looks good, no more 5G WiFi disconnects, the OS feels smooth, no errors on Log, speed is superb, WiFi speed at 10ft is almost same as Ethernet, 2.4 and 5G Wifi coverage better than X10 R9000, no problems at all, only a cosmetic bug on the latest Google Chrome browser, if you select something to change on any page of the OS, the Apply button disappear, you need to minimize and maximize to have access to the apply button again. The button bug not happens on Microsoft Internet Explorer.
Thanks