This is not an easy program to master. The on-screen tools icons are incomplete and the Help system abbreviated and, like the program itself, not very intuitive.
Measurement tools work inconsistently and Chief Architect's American origins are very evident in the library of "objects" which can be used to populate one's design - furthermore the Appliances amongst these objects are American sizes and cannot scaled to fit UK base sizes (though the base units themselves can be scaled).
My biggest complaint lies with the Print facility. Specifying print-out instructions is quirky to say the least, and while the designs do print out (eventually) at A4 size, this is only after wasting much paper and time on repeatedly imperfect trial and error attempts.
Worse still, the program would not print-out at all to my Epson A3 Photo-printer although (again after much trial and error as the Print functions are so obscure)it did a reasonable job on my HP A3 DeskJet printer.
Finished drawings, if you do not lose patience with the program before you get them, are clean and neat and the program is obviously powerful - if one has time to teach oneself how to use it.
Frankly I could have finished my work on a drawing board in less than half the time it took finally to print out my design on A3 paper.