We really liked Hy-Line. They are on time, clean, friendly and accommodating. You can very easily change your return time if you want to leave earlier or later. They are super nice. Our one recommendation would be to pay the extra for the Captains View on the Nantucket ferry. That way you have a guaranteed sheet and don’t have to get in line as early to board. The prepaid parking is a field not a lot so that was a bit interesting! We did last veg the ease of getting to the ferry. Highly recommend, they are well worth the extra cost.