Review on OpenStack by Carlos Burrows

Just like any other cloud solution out there, I like that this is flexible enough to accommodate my needs but not so complex that I have no idea how to utilize its features.

There isn't much to dislike about the product itself but one feature in particular has been improved upon over time. The ability to easily add additional network interfaces (eg VLANs) to network devices such as switches/routers without having to do anything special. We use this at work to provide our customers with private networks within their own data center environment.