Vensim has inbuilt features that make creation of models as well as the simulation of the models a smooth process. Also with sensitivity analysis, it is straightforward and with minimal complexity once you understand the knowledge base. I have been using it for 5 years, and I can confidently say it has continually improved. Looking back, Vensim was a complex platform but as per now, it is easy and straightforward.

VENSIM allows for modeling complex and dynamic systems, enabling analysis for decision-making. Its wide range of functions and capabilities for sensitivity analysis, scenario testing, and forecasting, among others, is highly beneficial.

The fact that it was very straightforward and the instructions were easy to follow.