First, the below comment about internal resolution of the panel being 4k is hoax. I researched it. Whoever found out that "hack", if it at all works, doesn't know it's downsampling the perceived 4K picture into the actual native resolution which is 2560x1600, as specified. Which means this is going to degrade the image quality, I repeat if it at all works.
Second,
This laptop is a beast! I bought it for programming and because I don't need to pay a Windows license just to keep the Windows unused - I use Gentoo Linux.
This thing compiled the whole software selection in under a day.
The display is great, it's powerful, the fans are not that annoying, given I'm used to a lot of cooling noise while working and in the same time I switched to a quieter environment where fans should have been more annoying than usual and they are actually less annoying. Of course, don't take my word on it, everybody has different preference and levels of tolerance.
I can't notice any coil whine. If there's any, I can't hear it because it usually happens under load and under load, the fans are working, so it makes no difference, I guess. However there are periods in which the fans are quiet and I doubt there weren't moments in such periods with enough load to produce coil whine, so I'd conclude there's none. Somewhere I read it was Intel's fault because of the design of their chipsets and here it's AMD so I guess this is kind of a confirmation.
In Linux, most hardware works and it seems prebuilt kernels work better than custom ones, mainly because you almost don't need to touch anything. I guess somebody would produce a better custom kernel, but I wasn't able to. Whatever I did, I couldn't make the touchpad work with my own kernel.
The main problem of this laptop is the numpad. It makes you either move the laptop off of the center and to the right, or twist your body a bit on the left, so that your hands rest on the keyboard. I don't know if in gaming the numpad makes sense, but for work it doesn't. Some argue they are accountants and engineers, but I'm an engineer too and I think nothing can make up for that non-ergonomic design. Whoever needs to punch numbers, can buy a numeric keyboard which, one can position however they like.
My situation on the other hand is that an external keyboard makes it mandatory to move the laptop further from me, which in turn makes it mandatory to buy an external monitor, which defeats the purpose of buying a laptop. Yes, it would be nice to have all of that, but sometimes you can't. In my case - most of the time. In the same time laptops like P1, X1 Extreme and all Dell's don't make sense. Especially Dell's with their PWM displays. Yes, I got that all displays use PWM, but Dell ones use especially bad PWM. And in a country like mine, where you can't just return something in the first month just like that, it's a big risk of ending up with something that kills your eyes.
The next disadvantage is the charger. That 300W brick is 1.170 kg with the cables. I still haven't researched if I can do with a USB-PD charger, especially when I'm not using that power budget of 130W(how much exactly it was?). I think a 150W USB-PD charger (if that is possible) would be fine and I'll use the brick when I'm compiling the Gentoo packages. But I read somewhere the laptop was actually charging external batteries with capacity of under 100W and a 100W limitation of power delivery through USB pops in my mind, I'm not sure if that's correct, but if it is, you end up with the almost 1.2 kg brick. I know such a laptop is not to be carried around a lot, but from time to time it's necessary. Not a big problem if you have a healthy body, but even when I had the 3.5 kg package of Lenovo T61p I used back then, makes you tired pretty quickly.
And yes - those are the two only disadvantages for me - the offset keyboard and the brick charger.
There's a third one, which is kind of my personal and that's why I didn't put it with the other two. It's the video card. I don't need it! I'd strip it out and sell it, if I could instead of paying a few hundred dollars more because of it. But there aren't other models, suitable to my needs and preferences. I couldn't even find the version with the weaker 3050 model on the market!