Frankly...I think Yelp needs to close this whole review section down and start over. The reviews that come previous to the new ownership are for an entirely different restaurant all together.
I'm not sure what happened or how it happened, but the whole appeal to the Penguin in the first place was the fight between its incredible ambiance and their wonderful food. I guess if it were up to me...and I wanted to take over a 5-star diner...I would have kept around the people that knew what they were doing.
I would certainly be pissed if I went here because of the Yelp reviews that refer to what the Penguin used to be. This place is not worth your time or money. I'm guessing it's owned by greedy people that decided to cash in and sell T-shirts.