As an early adopter of this application, I was very disappointed. NG released the program, hyping its capabilities, but the application was in less than beta shape. In short, it should not have been released. They were aggressive with updates, but all those did was fill in holes which should not have existed to begin with (one could not even print a map in the first 2 or so versions, and even more than that on a Mac).
That said, many people complained, and NG provided a FREE copy of any state version of TOPO! to those who had forked over the cash, and have done much to make the program good since.