Nobody can doubt the rising profile of OpenStack in the telecoms community. Its all-conquering goal - to produce a ubiquitous Open Source cloud platform that is interoperable, easy to implement and use, works well at all scales, and meets the needs of all its users in all contexts - seems to have gained it many adherents over a relatively short space of time. But, as always, it has its detractors. We’d like to find out what the community REALLY thinks about OpenStack and why. What is the good, the bad and the ugly of this open source cloud platform?