The ability to calculate power with ease and accuracy, as well as be able to handle different types of analyses without any problems. It can take some time getting used to its interface but once you do it's very easy to use. I've never had an issue using this product or being stuck in calculations due to bugs. If something doesn't seem right when calculating power/sample size then double check your inputs until everything looks correct. You will notice a huge difference in how quickly you get answers compared to other programs out there! We are solving multiple research questions at our organization all day long and we have been able to solve many issues that previously took hours upon hours to complete.
๏ปฟ