I like that it is free to use, has an excellent user interface which allows you can easily navigate between different modules of analysis with ease! It also comes in both Microsoft Windows as well Mac OS X versions making using this program very easy regardless if your computer system type uses one or another operating systems (such as windows vs MAC). There are several advantages when working within sudan but there may be some disadvantages depending upon what research questions/hypotheses being tested by investigators who utilize these programs? For example; 1) SuSan makes sure all variables have been defined correctly prior running any analyses 2), The ability to run multiple regression models at once 3); This helps reduce overall time spent coding up each model 4)- Allows more detailed breakdowns into subgroupings 5-) Helps keep track during writing-up reports 6.) Can help facilitate group discussions about results 7.).