The selection of Best Automation Software for doing repetitive tasks depends on what type of automation you want to accomplish. Selection of the automation software depends on whether you want some GUI testing to be automated and do some other offline tasks or fill online forms, etc. You can find free trial of various windows automation software downloads and spend lots of time in verifying whether the selected automation software is best for your requirements or you should be looking for some other Windows Automation Software.
Software Screenshots can really give you a great idea of what all any automation software can do for you. In case you can find some video tutorial apart from software screenshots, then yes you can visually check whether the automation software is best for your tasks to be automated. Writing Software applications, testing automation software applications, marketing them , providing support and other stuff requires lots of efforts and hence the software companies charge you a licence fees. A Generic rule governing prices of any Windows Automation Software is more the functionality they provide, the more they charge.
The Best Windows Automation Software for your needs to fulfill your requirements, must be actively supported, must be appropriately priced, the company should give you a free trial so that you can fully evaluate the software, you should be able to find screenshots, video tutorials, must work on your windows version in 32 bit or 64 bit mode and should work on your target computers, etc. Selection of an automation software is also dependent on how easy is the software to learn and use. A Free trial of Windows Automation Software is not the benchmark for deciding whether the selected software is the best or you still need to look for more.