Actually they've impoved a lot since yesteryears
I've had 2 faulty ASUS devices where the RMA process for their products is completed in a very short time

In January, I send an R9 280x for RMA because the fan has stopped moving, 19 days later they came back to me with a completely new card

And then in this month, I sent a ZenFone 2 for RMA because the phone is unable to detect SIM cards in both slot, send it to ASUS service center in Digital Mall on Tuesday 5 July. 4 days later (Saturday 9 July) received an SMS saying the repairs is completed

This post has been edited by sHawTY: Jul 15 2016, 04:12 PM

Just don't send the GPU back to the reseller for RMA
But instead send it directly to the distributor, Achieva Technology

Achieva RMA turnaround process is fast. Usually within 1 ~ 2 weeks, you'll get a replacement unit
Sent 3 PowerColor GPU to Achieva in the past