Scottish Tory goes for independence

A former Scottish Conservative candidate and Unionist historian, Michael Fry, has announced his support for the Scottish independence. However, the reason for his conversion is that devolution has failed to deliver:

“Devolution has proved to be completely hopeless, if anything making Scotland a worse country rather than a better country.”

Are the cheerleaders of devolution here over-hyping what it can deliver? What are the lessons that can be learned from the Scottish parliament for pro-devolutionists here?