Dennett is a great author. But, after laying out substantial evidence to support the notion that human minds are deterministic, he then backs away and instead claims freedom of will to be consistent with determinsitic minds. That is preposterous. He also fails to overcome the naturalistic fallacy.
Did you actually read Freedom Evolves? Dennett clearly lays out a framework that fits Dennett's idea of 'free-will' into an evolutionary and deterministic world. If you accept the premise of Freedom Evolves, it is not preposterous to think that the variety of free-will that Dennett describes us as having thrives in our deterministic world.
Yes, I did read Freedom Evolves. I thought Dennett did a lot of back peddling in that book, trying to reconcile his view with Harvard psychologist Daniel Wegner's book "The Illusion of Conscious Will." I defy you to summarize Dennett's view on how a deterministic mind can have free will. It is incoherent babble.