As a Lenovo Y2P owner, I have to just say that 3200x1800 is plain great. First, to the detractors of 16:9 aspect ratio, I really like this aspect. Running Blender, I can keep the side panels open and still have a reasonable working area. Same goes for Unity 3D. Web browsing is good, but 16:9 really shines when you side-by-side 2 browser windows.
As for the resolution, having text this sharp is a noticeable, if minor, convenience. I actually find that displaying 20MP photos is astonishingly clear. I thought it would be the other way around, originally. I thought the text readability would be the huge win and the photos/video win would be minor. In either case, more pixels are better than fewer.
And for those complaining about the Windows desktop at really high DPI: I just set the scaling to 200% and it works just great. Some apps kind of suck at scaling, though. I wish those Windows devs would get off their asses and fix it. But they are all probably busy writing Android or iOS apps right now.
Overall, the resolution is great, and the aspect ratio is just fine. Even in tablet mode - having a long page is just fine be me.
If there's one thing I would warn about in general about high res laptop displays, it's that the GPU can easily be underpowered for this. The Y2P's HD Graphics 4400 does an OK job, but the HD 5000 would have been way better. That's my one gripe about the Y2P.