Info for sharing :
My experience with HP service was excellent. My laptop has 3 yrs of warranty and a bright spot was discovered at the end of the 3rd year. During RMA, I've told the CS the battery was also not that good, it drains fast. They've replaced with new display panel and battery in 3 days, pretty fast! In addition, the CS manner (face to face and over the phone) was also excellent.
Anyway, for TW brand, I would prefer Acer rather than Asus laptop.