The best thing I like most was that it helped me to analyze my project's risk factors very quickly by giving results within minutes instead of days or weeks which would have been required otherwise if we had used traditional methodologies such as Risk Matrix etc.. There are some features where there could be improvements but nothing major so far! You can use this tool even without knowing any programming languages as well since you don't need technical knowledge at all!! Just upload your java files into their server then they will do rest part themselves i am sure because its something similar what google does when uploading documents/images to drive!!