Is Nimzowitsch defence good for black?

You come asking a question, then you argue with the people who answer. Not only that, you call the steaming pile of manure that is 2...f5 "solid".

You come asking a question, then you argue with the people who answer. Not only that, you call the steaming pile of manure that is 2...f5 "solid".
Well, till now that line has guided me safely through the opening but my opponents were slowly adjusting to my opening. And I don't wish to argue, I was just curious how white responded in the game.