You bet - thanks for passing on it on.
One item that I have noticed is that you do have to be specific about logging the time (in addition to date).
For example, I have it set to calculate on a 30-hour work-week, so selecting the Monday on my project start time and Friday on my project end-time SHOULD calculate an even 30 hours. (in the formula I have it set to 08:00 AM - 02:00 PM).
What I'm finding is, if I don't type in the actual time-stamp in the calendar fields (ie 06-04-2018 08:00 AM - 06-08-2018 02:00 PM) it will skew the numbers (even though the times are set in the formula).
Other than that little wrinkle, it works beautifully for me needs.