During trouble-shooting you will discover that the logs are all over the place - even on servers you would not expect - and fragmented into dozens of files, yet the detail is excellent. It's Java execution logs, so needs a bit of interpretation skill, though. 

Speaking of Java, the web interface requires JRE and degrades in mysterious ways without it: No warnings or graceful fall-back. The web UI is otherwise VERY awkward and limited in functionality. The Windows client on the other hand is extremely dated but rich in functionality - not pretty, though. Despite the API, there is no vendor support for integration into any other systems except through HTML frames.