I like that it is easy to use, has many plugins available for different environments (dev/test), can be used with multiple languages in one project; also there are so called "triggers" which makes automation of tests very convenient! It's not free but you get what you pay for ;). You should try this software as soon as possible because if your application will contain more than 100 tasks or even 1000 then using such tools becomes absolutely necessary. We need an infrastructure where we could automate our test cases without any human intervention. This tool helps us achieve all those things at once by doing nothing else other than writing code written beforehand. The most important thing about this product is its ability to perform repetitive work easily within few seconds only thanks to triggers feature provided by Cog-Jenkins plugin. Our team does manual testing during development phase while automated ones take place after deployment process finished successfully. By implementing these scripts into CI system i have saved huge amount time spent.