Ask HN: Does the accelerators interfere too much?

My associate want only angel investors, and not try a accelerator because he thinks he will have to do whatever they want and this will affect our creative control and general management of the company.

Since I never worked with a accelerator, I don't know what to think exactly, but to me it sounds he is right (since YCombinator for example requires you to move, or some others are clear they have some strong rules).

So, is he right?

Or at least, there are different styles of accelerators?