I like that it has easy to use SQL interface as well as support of many different languages such as C++/Java or Python programming language which makes development easier compared with other DBs available in market at present time (MySQL). It also supports multiple threads allowing faster execution speed than any single threaded dbms out there. Also have some nice features where you can set up data integrity checks alongwith triggers so if something goes wrong while insertion into table then system will alert user about error by sending email etc. So far no issues were found but sometimes due to its nature of being realtime db we cannot afford downtime unlike traditional databases hence this one needs more testing period before going live. In our case it was used only to store application logs generated from various devices using log4j library and send those records via mail when certain events occur.