But only if you budget the time for learning those. Blender might take several hours of tutorials just to be able to create an empty room in the shape of a regular, rectangular box.

Also Blender lacks support for exact measurements AFAIK.

I tried this approach but gave up after barely achieving a rough floor plan after a day's of work.

It definitely takes some doing, and you're right about the measurements.

I often draft the floorplan in AutoCAD first, bring that into Blender...

But the results are amazing. I wonder if a powerful but easy interface could be built as a bridge /plugin for these tools.