OpenStack has a promising future
While we haven't run anything in production on OpenStack, we are actively exploring OpenStack as an option to replace our extremely expensive VMWare environment. We have an OpenStack pilot running on an Intel NUC and the performance is quite good. It was dead simple to setup using the instructions found here: https://www.rdoproject.org/Quickstart
I'm very optimistic on OpenStack's roadmap. Redhat says Liberty will be the first release to get longer term support, which makes us more comfortable when or if it comes time to place the bet. Quite frankly, I desperately want to see OpenStack as a viable IaaS. I think just about everything else (sans our Windows print server) in our environment can be docker'ized to run in OpenShfit version v3, which of course would run on top of OpenStack. Scalable micro services, run through an automated infrastructure tool PaaS like OpenShift seems to be the future.