So far, I cannot find any negative qualities to mention. My transactions and interactions with Ninjacators has been satisfactory. I am learning more each day about the best way to use their products, particularly the spectacular RobotLab. Their responses are quick and helpful, and they follow up relentlessly to ensure your satisfaction. This is a new approach to trading for me, being a discretionary trader for many years, but I think I have hooked up with the right group to explore algo and robot methodologies. Give them a go!