Regardless of frameworks, and of technologies and platforms, I believe if I can take the load off myself with Capistrano, by turning it into the open source component of a best-practice company, and build teams of passionate, skilled support engineers, then I'll be where I want to be.
Unfortunatley Harrow would suffer if I give up on Capistrano, as part of the promise of Harrow as a SaaS is that it's all guaranteed to stay compatible, and work as we've all come to expect, just with improved workflow, etc...
([1] http://www.harrow.io, please excuse the missing graphic placeholder I've not updated the landing page in some time as I've been focusing on building the product, and the landing page performs really well without that graphic in place)