It depends on how good your IT people are. But yes, it works quite well when done right. >What are the SLA and support for this? I don't know why I would need

It depends on how good your IT people are. But yes, it works quite well when done right. >What are the SLA and support for this? I don't know why I would need any sort of support when all these projects are open source, I can just debug stuff on my own.