I upgraded QU to 2016.110 and the text size is much better on my Dell XPS13 with Win10. I'm using the 250% option and most of the text looks pretty much normal. There are still problems with some text being truncated, apparently due to the space allotted to the text not being properly scaled to the size of the font used in that space. I've noticed this problem on many other apps, I believe even on Microsoft's own apps, so maybe this problem is deeper than can be handled by tweaking the UI.
Unfortunately, when I try to import files from my SD card, the file and folder names are chopped off so much they're virtually unreadable, so I have to hover the cursor over anything I need to read.
Anyway, thanks for the unbelievably quick response to my report. I think a lot more computers are going to have HD displays and that the issue of scaling will eventually be solved in a global fashion. Until then, these problems will impair usability on HD machines.
Dan