Review on Oriana by Hayden Hart

The easy to use GUI helps me do all my statistical analysis without having to spend hours trying different programs that are too complicated to learn how they work! I also like being able calculate several types of standard errors/confidence intervals at once rather than have them seperate from each other which can be confusing if you're doing more complex calculations later down stream with your results.

For example it's useful when calculating confidence interval widths but not so much as an error bar itself because sometimes there is no need to add up multiple individual values into one single value unless its very small compared to others around it. It provides some interesting insights about what people think by looking at their graphs even though many don't know exactly why it looks this way when using excel instead.