If I do say so myself, its default regression output is more thoughtfully designed and includes higher quality graphics than what is provided by the best-known statistical programming languages or by commercial Excel add-ins such as Analyse-it, XLstat, or StatTools. It has been available to the public since May 2014, and a new version has just been released. I originally developed it for teaching an advanced MBA elective course on regression and time series analysis at Duke University, but it is intended for teaching data analysis at any level where students are familiar with Excel (and use it on PC’s), and it is also intended for serious applied work as a complement to other analytical software.
I know you are not particularly fond of Excel, but you might (I hope) be interested in a free Excel add-in for multivariate data analysis and linear regression that I am distributing here.
