I had Coney Island Brewery's "Freaktoberfest".
It did not pretend to be an Octoberfest at least. It was flavored with coffee. Not bad, but the one I had was free. I do not think I would buy it with other choices available.
I had Six Point Brewery's Octoberfest as well. It too was a bit "bocky" but not like Blue Point's Bocktoberfest.