B H.
Yelp
Usually reviews are written to warn people to stay away OR go to the establishment. Here, if you want to fly to Nantucket, the airport ACK is your only choice.
But warning - despite its location, it's one of the least pleasant airports in the US. They did a major expansion a few years back but you wouldn't know it. Seating in this small airport is sparse - everywhere! Worst is once you get through security, there is one gate that has seating for about 100 people, if everyone sat next to each other. They don't - that's not the clientele of Nantucket, bags on seats, etc. they have overflow "standing" outside next to the jets that are loud and smell. People are forced to sit on asphalt.
The weather is always iffy and, as a result, more often than not, you are delayed or cancelled. What this means for the airport (duh to the Airport Manager), is that the airport fills up with people waiting hours for flights (welcome to an island in the Atlantic). There is also a labor problem on Nantucket - so be prepared for ill trained, slow and rude people throughout. Especially in security. No small town airport charm - this is mean, short and insecure people directing you. A line of 50 will take 45 minutes because of the slow and undertrained staff.
The restaurant is the best thing - cup of clam chowder is recommended and the manager is friendly and outgoing.
This is the second busiest airport in the State, the private jet business makes a ton of money for the airport and island. Please, somebody, fix this mess - it is a horrible way to end a vacation to the island. Fire the staff you have now - and get some competent people who want to be there. And please, don't make people stand for hours as flight are constantly delayed and cancelled. Build enough seating.
Horrible experience all around. Advice - take the ferry from Hyannis!