I would not use that currently, because I know how to use chef either for me or my customers; so basically this is almost free to configure a new machine now.

I would not use that currently, because I know how to use chef either for me or my customers; so basically this is almost free to configure a new machine now. But this is not for everyone neither I think, so I definitely think there is room for your service somewhere in between! Small point: I would definitely expect such as service to provide passwords in an encrypted manner (as you need to communicate them at the end I guess).