Yeah--we used it last summer and I'm going to use it again in January.
The baggage allowance is small. But if you're just there for a long weekend and you're just taking a carry-on, it's fine. Otherwise, you're going to have to deal with a luggage-delivery service.
But here's the thing: it's a combination transportation and sightseeing deal. Yea, you get to the airport in 7 minutes. And that kicks the shit out of an hour in an Uber (which is going to cost at least $100 on its own). But you get an amazing sightseeing tour along the way. From the 30th Street Heliport, you go south down the Hudson as Manhattan is restricted airspace. You then hook a left south of the Battery, which gives you a great view of the length of Manhattan on one side and the Statue of Liberty on the other. And then five minutes later, you're zooming up between the departure runways at JFK (which I found actually to be a bit unnerving) as you approach the helicopter terminal.
Is it worth it? I mean, yeah--I think so. It's damned expensive. But it's also something you're only ever really going to do in NYC.