I liked everything about this package - easy to configure through GUI; flexible licensing options at various price points/versions etc.; very capable team working within your project / organization helping out when it's needed! Some small configuration required which was quick fix by support teams during trial period & nd first few weeks post go live but no negative aspects here.
Have used their other products too over time like WebAPI Sentinel where you can filter down APIs before sending back from gateway so we have filtered more than 40k+ Apis into less 1000s using web interface easily even if they are not mentioned anywhere publically yet!! The user interface has been very helpful to understand how it works! Very easy to use for our small team. I am not sure if this issue was fixed but some times when we were testing different rules there would be errors displayed which made things more complicated than they needed to be. We are solving issues related to APIs from being exposed without proper governance/security controls.