Been using 8 for about a month and had a few hiccups from the browser, but Central has been running fine for me. Carry the win 8 laptop on the road with me to give it the acid test. Sorry to hear your having issues!!
Remote control not working for me eithler for Windows 8 Consumer Preview. Using an ipad with ignition installed, I can log in and view the desktop and move the mouse, but all controls are dead. Once I exit the app and try to reconnect, I get a black screen.