It can be, as long as the people running it know what they are doing. What is their track record? What are their credentials? Can you do better on your own by hiring a business coach or mentor to guide and help educate you in the fundamentals and process of business? These are some things to consider in your own due diligence before going blindly into an "incubator" scenario.
Even if you're still in the planning stages for your new enterprise, it's never too soon to start thinking about these six operational issues that will impact and contribute to the success of your business.