The software has multiple features including material editing, simulation modeling as well analysis & design optimization with easy to understand interface which helps me out every time I need it for my projects! There are some minor bugs but nothing major so far regarding this product since its launch last year till now i have not encountered any serious issue while using ESIGroup's VEI tool during development phase or final manufacturing process! It offers an excellent set up from basic level through advanced options like Finite Element Analysis (FEM) calculations etc.,It makes all our engineering processes more efficient than ever before by providing accurate solutions within minutes rather then hours/days when done manually without such tools!!