I first learned AutoCAD back at version 12. We were fed up at the cost of AutoCAD, no shock, and so tried ProgeCAD. Seamless change over. A big plus was having the two copies. (only one to be used at a time, fair enough) So one on an office computer and one on a tablet I can take to site with me. At Redhouse Forge we design and make feature metalwork. So might be 3m tall stainless gates, or a vanity unit set in the wall or traditional