The only two times I took this flight in the past two years ended with them calling me a taxi to drive me to EWR after delays caused onward missed connections.
And the only reason I was taking it is because I was travelling with someone going back to LA and it allowed us to share a cab and have more time together, lounge, etc.
Otherwise I can't imagine why I would want to take this flight when plentiful nonstops out of LGA were available (which I normally use via DL), and I have always wondered why on earth it existed.