The best thing about this program, it's that you can use your own data to create simulations with different variables like mass of objects or materials used in construction etc..I also loved how easy was using some features such as "solver" where I could easily solve equations just by typing them into box without having any programming knowledge needed! It would be great if there were more tutorials available since i only learned very basic stuff from their website but still managed manage my way through everything else so far (so no complaints here).
Also sometimes when solving problems online they don't show all steps taken which makes things confusing at times unless we go back manually look up what step did he do wrong because its not always clear after looking over his answer sheet haha :) Great tool once u know basics however first time users might have difficulty learning certain functions/features due lack off tutorial material provided thus making user.