The software is easy enough for anyone with basic programming skills can use it without any problems (which I think makes sense).
A lot of people have trouble understanding how this program works so they get frustrated when trying out different things in their model but after some time you will realize that all your calculations are working as intended or at least close! It's not always perfect though because sometimes there might be small errors here &there which could make large differences if ignored. If someone needs help solving something regarding fluid dynamics like calculating flow rates through pipes etc., then definitely give them try first before giving up since we've been using tramps O/W version now more than 10 years ago by our own engineers who were doing research into oil flows around pipelines during those times.