The people I worked with were the best around, I spent 20 years making the green screens web based, unfortunately assembler and cobol progammers are hard to come by. Those that know what they are doing can do it really well, and facilitate Java guys like me to make the most of things. Very stable in a highly controlled environment (assuming you have an operations team on hand 24/7, most large companies do). In my 20 years depending on it, I don't recall it ever going down, Review collected by and hosted on G2.com.

lack of talented people , IBM support is great if you can narrow down the problem for them, they work 24/7 to help you in a crisis. Probably the cost would prohibit most companies from using it, as an employee, that's not my issue, it really is a workhorse that can handle anything. Review collected by and hosted on G2.com.

IBM CICS(Customer Information Control System) is a great platform to connect to IBM Mainframes and leverage the data stored on the Mainframes. It supports many languages and connectors. In my project we used JAVA and MQ calls basically. We use to integrate our new JAVA-based tool with IBM CICS to get the required information from the backend servers which were IBM Mainframes in this case and then present it to the customer on a webpage. It never slows down and the ability to handle volume is unparallel. Review collected by and hosted on G2.com.

I am not sure if I disliked anything about IBM CICS. Although it is a little complicated when you are making the connections for the first time since there isn't much documentation around this subject on the IBM website. Second is the lack of well-experienced resources who have worked on CICS and have a deep understanding of the same. Review collected by and hosted on G2.com.

The Best thing i liked about IBM CICS is the platform provided to integrating new Web applications while leveraging the Mainframe systems. Review collected by and hosted on G2.com.

In a Multi web application using CICS as the middleware to queue transaction , there is a downside to performance during peak timings Review collected by and hosted on G2.com.