I find that REPORTIFUL works extremely easily. It is such that generating reports usually takes a lot of time, especially when you need the same reports every month. With REPORTIFUL, this recurring work is greatly reduced. You simply provide the data you want in the report, and the tool generates a nice report from it that you can use directly. The initial setup was also very easy, as you only need to create an account and provide the data. I believe it doesn't get much easier than this.