It is my understanding, after talking with a number of people at UN, including Rolf and Patrick that there were Freaks produced that have worked perfectly since day one. Others, like mine, have been problematic and it was those that led to the development of Freak 1.5. With this latest improvement, my watch has been working flawlessly.
With the above said, I would not have the upgrade until or unless it is needed. A watch is like any fine piece of machinery, if it ain't broke, don't fix it. I would advise against any consideration of a 1.0 vs. a 1.5 version based solely on investment/"value".
Mitch