It is a stable solution. We didn't have any major outages or anything.

There were problems with stability that were solved in the last update.

It's a stable solution.

The solution is stable. I'd rate it seven or eight out of ten. There are no bugs or glitches. It doesn't crash or freeze. 

The solution is very stable.

We haven't had any issues with stability.

This solution is a software service (SaaS), so we do not have to manage it. 

The stability of the solution is good. I've never heard of anyone saying "It failed." There's no problem. It's there, just like any other cache application. You don't have to maintain it in your data center. I don't even think much about the stability because I know the solution can handle it.