It is always recommended to check the reviews and compatibility report for the new OS X version on the internet before you upgrade. It may become unstable or annoying for you by running slower than before.
Whenever a new operating system or its beta version is launched by Apple, everyone is excited and eager to upgrade to the new version for a change but at the same time its also critical to some business or to some professional or could be frustrating for personal use also as some of your important software may not work which leads to downgrade to previous version of OS X.
