The professor is great! You can definitely notice that she puts a lot of effort into such a course. She is always willing to answer your questions and debug your R scripts. This course is highly recommended if you are a senior or even graduate student as it will really help you develop your ability to do independent research in terms of transportation, environment, network, and so on by using R. However, you should keep it in mind, the workload is heavy. You should prepare for that.