So, I wouldn't use this box because it doesn't ECC Memory (http://en.wikipedia.org/wiki/ECC_memory). Google some years ago did a study on DRAM errors in the wild, in order to determine if there was an actual need for ECC in modern datacenters / distributed computing applications (http://www.cs.utoronto.ca/~bianca/papers/sigmetrics09.pdf). The short summary was that yes, they did need it.
It bums me a out a little bit that there is only a 1G fabric on these, when each board has two mini-PCIe ports, which is at 2Gbit/sec, and make a ring topology out of them, or using a PCIe switch. Another interesting approach could have been a usb 3 fabric.
Yeah these aren't really intended for real workloads, it's to spin up a team of people with a self contained box that replicates what a real OpenStack deployment would look like.
So the idea there is you play with this is two days of training and then two weeks for your team to learn OpenStack while you're getting the real hardware ready, etc.
Given that the processors (http://ark.intel.com/products/64903/Intel-Core-i5-3427U-Proc...) that are on these NUCs don't support ECC, I would probably avoid these units for any real workload.
It bums me a out a little bit that there is only a 1G fabric on these, when each board has two mini-PCIe ports, which is at 2Gbit/sec, and make a ring topology out of them, or using a PCIe switch. Another interesting approach could have been a usb 3 fabric.