The only dislike I can bring to the table is that the UI is sometimes a bit confusing for a new user. The menu structure and report naming is similar and can be easily confused.
Specifically, the distinctions within Leadflows (sets, campaigns, offers, and affiliates) becomes a bit unclear when creating complex setups.
On the reporting front, it's not overly clear from the outset what the distinction between summary and performance reports would be. New users often click through both to look for the specific pieces of reporting that they are looking for. Review collected by and hosted on G2.com.