Complex SOA are simplified using IS, TN, BPM, UM, BPM, CAF and MWS. Using wM on Azure cloud in Docker Microservice - Linux platform. We heavily depend on webMethods for all the integration activities.
Most helpful is the flow we can define in IS. Also with MWS we can monitor all the transactions, user access, TN assets etc. The internal clustering option for each components are also very useful.
Error capturing is also easy.
They also have a strong KEDB for known errors and product usage documentation.
BPM is very good for monitoring the business process. Review collected by and hosted on G2.com.