The most useful feature for me was being able to quickly get my hands dirty using Python scripting language instead of having to rely only upon an API interface which can be difficult sometimes if I don't know what exactly am looking at when working through those interfaces! It's also very easy to set up as well since everything has been made available via online tutorials/documentation so there isn't much room left out from any learning curve issues either. There are no downsides really but maybe just some minor stuff like needing more space within our servers etc. But nothing too major unfortunately :P.