The flexibility of the UI which allows for ease of navigation, testing multiple environments, and running automated tests. The time taken to set up CI jobs with Jenkins can be overwhelming at first but once you get used it's not too hard to configure. If I were looking into this product again I would look closely at how easy it was to learn as well as how much support there is from their team. There really isn't anything I dislike about this product. It does exactly what we need so far without any issues that have arisen during our trial period thus far. We have been able to use this software very effectively.