Hey Fernando, nope, I'm not using any type of such software.
But I totally see what you're saying. The text is the actually the one that looks a bit odd to me .. especially in a file dialogs, like when you need to import something or locate the bitmap etc. It feels like it is scaled.
UI itself is pretty fine. But again it is a 5 k screen which is only 27 inches in diagonal so the pixel density is pretty high, like a Retina display .. in fact it is a retina-display
However text dialogs are the least important to me in my workflow, and, again to be honest I'm mainly working inside Maya (which is also on QT), and my interaction with Maxwell there is through Maya interface (mainly) - so it looks nice and sharp. The exception is MXED - that dude has some issues

) but again those are not critical and don't influence the quality I can get from it
However Steve is probably on Windows
