I'm using a Dell P2715Q (also 27 inch 4k); it looks fine. But... scaling? The point of having a gigantic 27 inch monitor is that you don't need to scale it. The only problem I do have with the monitor is that it makes me disable scaling on my 15" laptop screen, since there are annoying interactions when you have one screen with scaling active and one without.

> The point of having a gigantic 27 inch monitor is that you don't need to scale it

The point of using a High-DPI display is that you can use scaling without losing the screen real-estate. With 5K @ 27" you can get what looks like 1440p in physical UI element size, but with an increase in clarity, readability, and quality.

27 inch is a small monitor. But I agree, usable real estate comes first, then clarity (by way of scaling). So you want a genuinely large monitor (at least 40 inches) at 8K+.