I just spent a day or so reading the posts on OpenCPN - Cruisers & Sailing Forums... I was a little like going back to my youth when I was actively playing with programing accounting software projects. Man I have forgot so many challenges we faced. Poor compiling of new fixes, then testing them only to wonder why the programing failed... Turned out it was a compiling error. This is all played out through months of text from active users as they work on fixing/improving the features of OpenCPN around the world. Just the "Weather Routing" thread spanned multiple years of experimentation and several versions of the basic software (from version 3 to the latest 5.0)
Intriguing that OpenCPN is ported to multiple operating systems (Android, iOS, Mac, Windows - multiple versions). This is a testament to the mission of helping all who have an interest to help themselves.
Those who are using the software - what are your experiences. Did you load it and run it getting the results you expected? Have you been able to use charts for the locations you sail? Free charts or are you paying for them? How quickly are the weather planning runs? Easy to apply tidal currents to your routing? How are the results - true experiences or still a work in progress?