One of the creators here. Just to make this clear, this tool has not yet been released, however, we are getting close. Before you criticize the UI/UX, please try it yourself. We will be offering a public hosted instance and enterprises can host it themselves for their own GitHub enterprise. Our page http://review.ninja/ is outdated right now and only used for mailing list purposes, please refer to http://review-ninja-staging.cfapps.io/ for our staging environment. Please be aware that staging might not be stable.