Hi, I'm Kuba, logging in from Poland. I use QCAD for hobby purposes, and it's pretty much my first CAD program. I'm primarily interested in electronics, and so I'm mostly creating panel designs, and also various small doodads that I find useful and possible to manufacture in my very small home workshop (who am I kidding, my workshop is the mess I have to clean off the dinner table every day

).
So far, I'm really impressed and probably will get Pro version sometime when I have a break from spending my entire allowance on tools & materials. It's awesome that a tool with this level of polish has a free community edition.