I looked for a cheap 2D-CAD solution for my private use. First tried LibreCAD and it was okay, so I used it for some time. But performance was not so good as I wish. So I looked again and found QCAD. Performance is much better and afaik it use the same codebase as LibreCAD, or better said, LibreCAD use the same codebase as QCAD. But QCAD has been much more often updated as LibreCAD. So I stay with QCAD.
Why only four stars? At the moment I don't want to pay for the pro version. So I've to remove some plugins manually from the App, otherwise it stop working after 15 minutes. So, please make a download file that contains only the community edition, too.