I can't say Asus. I owned an M6Ne for a month and sold it. It came with a 1-year global warranty. I purchased an additional two years for it. When I received the notebook, it had a dead pixel, which neither the reseller or Asus were willing to resolve.
I know both seller and manufacturers have their respective policies on dead pixels. But, I was still highly irritated to find this on a $1900 laptop right out of the box.
My M6Ne also had build quality issues. So, that didn't help my impression of the notebook either. I sent it back to Asus for repair. They sent it back with some quality improvements.
In the end, I ended up selling the system for $300 less than I paid for it. I'll definitely look at other manufacturers before I consider Asus again.