After a rocky start, as initially I was unable to install the program on Windows 7-64-bit, I am delighted in discovering the great features of this program.
The technical service was great in helping even at the time when I was only a prospective buyer.
The tools for annotations and measuring are far better then the ones in similar programs (and way mutch cheaper).
I have no hesitation recomending this to anyone.
Great purchase! I am very happy!