I like that it's an open source software, so you can use this in your own way to improve its functionality or just play with new ideas (i'm currently using ponto as my home automation system).
There are no additional modules available which i consider quite odd especially if compared only against other Home Automation platforms out there; but maybe they're thinking about future features instead developing existing ones? If not then please tell me what problems do u find! At some point while working remotely from another country we lost internet connection once - had been able solve such problem by switching back online again through mobile browser since our server was running off cloud-based provider where everything happens over VPN anyway ;-).