[CentOS] Oracle UEK kernel on CentOS

Hello CentOS Guys,

What do you think about the Oracle Unbreakable Enterprise Kernel?

Since Release 2 of the UEK Kernel, all updates are available free of
charge > http://public-yum.oracle.com/

My questions:
Does the Oracle UEK kernel really perform better than the default centos kernel?
Technical advantages and disadvantages?

Would you use the Oracle UEK Kernel on centos?

--
Chris