2 ASUS M6 owner here, from Taiwan too

1st one has battery problem (it's known), replaced in Taiwan easily
2nd one, LCD RMA'ed in 1 day, overnight back (sending to California took 2 weeks though)
Weird to have 100% problem rate, but 100% fixed rate is just awesome
I love their quality & service, and love Made In Taiwan laptops

I owned a old Asus A1000 (p3-650) too, still usable. My gf has M2, pretty light & good as well