First, this is a nice little laptop. I got a display model from Best Buy for my wife a few months ago for $384 out the door, and for what she does it works well, and she really like the touch screen. For me, it's too slow.
However, in the 2 months we've had it, it's been out for manufacturer warranty repair longer than it's been in our house. It has a problem with suddenly shutting down, as if the power and built-in battery were pulled at the same time... not a clean one, and not a reboot. Windows records "Unexpected sudden power loss" in the event log.
The first time it happened was a week after we bought it. I thought my wife did something, so I re-started it and let it go. The next time it happened was a couple weeks after that. Best Buy happily took it and kept it past the return period. The tech report said the ASUS guy they sent it to couldn't find a problem and replaced the motherboard... nothing wrong with that, and it was the newer 3rd generation i3 motherboard (some use 2nd gen).
About a week after that, it glitched again. Even if I knew it was only going to be every week or 2, I'd still want it fixed, who knows what's going on when it powers off, and the frequency could go up over time. I returned it again. This time the tech was, well, an Curly, and replaced the hard disk because it had errors. That's not a surprise, there's a good chance it had sector problems from the power being essentially yanked out during a write. I call him an Curly because given the connections between the SATA drive and the rest of the system, there's really no electrical reason for a bad sector to cause a sudden shutdown.
Now the 3rd time it went in wasn't because of the problem. I got the laptop back, installed a few things, and noticed that Windows wasn't activated. For 2 days no one at Best Buy could give me a key or tell me what to do. There's no sticker on the back, and apparently it's not stored in ROM (I wiped the disk to re-install, it didn't find the key). Three different ASUS chat guys told me that the key is on the motherboard, and after questioning the third, I said "wait, do you mean it's on a sticker on the motherboard, and not in nvram?" He said yes. I want to think he's wrong, because that's a Nyuk Nyuk Nyuk! move, but nevertheless, it went back in. Best Buy actually gave me a new Pro license, so that was nice. And it only took 3 days of them failing to get the key to do that.
That brings us to now. It went back last week, after a few days of using it. This time a tech called me from Kansas about it. "I couldn't get it to fail after letting it sit idle for a day and stress testing it for a day." I told him it would take a week or more. It was nice that he was stumped after the replacements that already took place. All he has left is the battery / power supply and the display (which could have an issue with the flex connector that might cause a power loss... maybe), so I'm hoping it takes this time.
This last time, I found out that Best Buy sends it to an ASUS-authorized repair center, not ASUS. All this time, I was hoping that ASUS would realize this is a big inconvenience to their customer and just replace it, but repair guys are probably always going to keep replacing stuff. Best Buy only cares if you buy their extended warranty. So if it happens one more time, I'll go ahead and pay the shipping to get it to ASUS, along with a history of the repairs, and hope that first, they replace it, and second, the one I get works. I have found stories online about it failing like this, many ended up returning it. Unfortunately I went past the return period during the first repair.