The ability to build complex predictive analytics with minimal code is amazing! I have been able to create machine learning solutions that are not only more accurate than my colleagues who use Excel but also simpler for users to understand - they can see what their model does in plain English rather than having to dive into math formulas and data sets.
It's still early days so there is some room for improvement (a good thing). For now it has made our modeling process faster and easier to explain to non-technical people.