Due to its exponential growth in recent years, cloud computing is no longer considered an emerging technology. Cloud computing, however, cannot yet be considered a mature and stable technology. Cloud computing comes with both the benefits and the drawbacks of innovation. See this article for more information.

https://blog.cloudsecurityalliance.org/2015/08/12/trusting-the-cloud-a-deeper-look-at-cloud-computing-market-maturity/

The technology remains valid stable in some meaning . it all depends on the scale of use and the desired economic model