this is a really fantastic piece of software. We used the student edition 20 years ago in college and i really liked it, the full version was selling for around $4800.00 not long ago. Company folds and they very graciously (imho) offer it up for free. it really is worth grabbing and trying out. i remember years ago just as a first attempt not even being that familiar with electronics it was easy to use. might be one of those easy to use - hard to master things but that just speaks to depth. I've looked for the textbook with the student edition software in it many times and to find this now is fantastic. It is not a shareware or freeware product and that is very obvious right from the start, you really have to check it out.