Having recently purchased a bunch of East-digital drives, I couldn't be bothered waiting on the free standard that I got free here a while ago from Here. So the standard software only let me test one surface test per drive at a time, which for 3 drives it would've taken me 3 days. So, I decided to take the punt and buy the pro licence so I could run them all at the same time.
As someone who thoroughly enjoyed the standard I was more than happy to pay the $30 to support the developers, and heck the license is lifetime!
How is this better than the free version?