The tool gives me ample freedom when creating my chatbot as I can add custom features which are not available out of box. Sometimes if you have made some changes then all your previous conversations will also get affected. As there is no option for undoing any change, sometimes this gets frustrating. If you want an easy way to build your own ChatBot system using API's then this should definitely help. We are solving our Customer Support issues by building such smart tools where customers just need to interact through conversation without typing anything.