I delt with their customer service. Their level 3 tech (Which is supposably a supervisor) hung up on me when I was asking a question about the site contradicting it self. I was in no way hostile, did not yell, did not cuss. He just hung up on me because he didn't want to deal with a problem. I had also dealt with this rudeness the first time I had to deal with one of their level 3 techs before... He said he couldnt stay on the phone with me while I try to troubleshoot a problem, he wanted me to call back after I was finished. (It took me 45 minutes just to get to a level 3 tech... Why do I have to call him back when the troubleshooting I have to do will only take me 5-10 minutes?) I also had to deal with their RMA department. It took me 10 business days to get my board back AFTER ARRIVAL. That took me almost a month to get it back due to the day it shipped out.
So yeah... Asus products are great, as long as nothing goes wrong with them.