The solution is pretty stable.

The stability is good, but it is not excellent. Every now and then, we have had minor glitches. However, on an operating level, we have had no service downtimes since we went into production, which is excellent.

AMQ is a highly stable solution. I've never had problems in my production environment. 

We have found the solution to be reliable.

This solution is completely unstable. We lose messages.

Red Hat AMQ's stability is good.