MINOMBRE  Like a previous reviewer, I was also a dedicated Beyond Compare user on PC. After an extensive review, I have found Deltawalker to be the best of the file/directory comparison software available for Mac. Since it is still a work in progress and therefore, for me, lacks some of the functionality of Beyond Compare, what really convinced me to buy the product is the excellent and timely customer support. I am confident that my requests for features in future version upgrades will be sincerely listened to and implemented.  
(Version 1.8.7)