The ability for quick access from all over my desk via web browser or mobile app was great! I liked that we could use it with other companies' systems as well - just needed some customizations (which were not too difficult).
Also nice being able to share progress between users in different locations without having everyone be online at once during an activity like this. Not much dislikes about anything related specifically to Apo itself but overall dislike has been more so due lack of communication / training regarding how/why certain things are done. We used Apo's product called RPAX which allowed us to connect directly into their system using API calls instead of going through 3rd party vendor such as Workday etc.