ExtremeManagement is stable. 

We haven't encountered any major stability issues with ExtremeManagement. The only notable problem arose when a customer was using an older version, which caused some issues. However, after upgrading to a newer version, the stability improved significantly, and the problem was resolved.

It is very stable.

I do not recall having any issues with the stability of this product.

The solution is definitely stable. We don't experience crashes. It's reliable. If there are any bugs, they are quickly identified and removed as soon as possbile. All enhancements and new features are well documented in release notes.