The solution is stable.

Over the years, stability has improved. Typically when there's a new major release, there are issues and then two or three sales packs later you're in a better position. That's just the honest truth. 

Right now, we're fairly stable. In the next month or so, we are going to be upgrading to the latest major release. At least now, on the third service pack, I don't expect there to be issues. That's my experience. 

There is a major release going from version three to four or four to five. There seem to be issues up front, and then once you get to the third or fourth service pack to address those various issues, you're fine again. Having an experienced implementation partner is important due to the fact that if you don't get your parameters tuned correctly, you are also going to run into some issues.

This solution is quite stable.

The stability is fine. We don't deal with any bugs or glitches. It doesn't crash or freeze. It's reliable.

In terms of stability, it Is very good. The client is very satisfied with the stability of the solution.