Hopefully Openstack will be a bit more mature then too. With lower hardware costs and an open source software stack cloud computing might get pretty competitive.
It's a mindboggingly strange mess. Yeah, it works, when it works, but it's so undebuggable and unmaintainable. Well, if you have in house committers from the core projects, then you can afford to run custom forks/branches. Oh and a few dedicated Infrastructure Wizards deploying it, upgrading the components as patches land, managing outages and simple gotchas.
It's almost easier to roll a new non-multi-tenant instance for each tenant than to try to make it multi-tenant as both Horizon and Neutron are bad at handling domains.
And it [one of the neutron linuxbridge agents] sometimes randomly eats IP addresses from host interfaces :o
Oh, and the docs and release notes are still generally useless on compatibility changes, upgrade procedure and so on.